UrbanPro
Login Ask & Answer Success Stories Paid Courses Free Classes Tuition & Classes Fees Write a Review All Categories Help Center
Post your Learning Need Signup as a Tutor
✕

Popular Cities

Bangalore

Hyderabad

Delhi

Mumbai

Chennai

Pune

Kolkata

Gurgaon

Ahmedabad

Jaipur

Noida

✕

Take Class 12 Tuition from the Best Tutors

  • Affordable fees
  • 1-1 or Group class
  • Flexible Timings
  • Verified Tutors

Book a Free Demo

Class 12 Tuition > Learn Class XI-XII Tuition (PUC) > Magnetic effects of current 1 what is lenz law? 2...
✕

Search in

Magnetic effects of current 1 what is lenz law? 2 explain briefly MCG?

Asked by Last Modified  

11 Answers

Learn Class XI-XII Tuition (PUC)

Follow 0
Answer

Please enter your answer

Tutor

An electric current induced by a changing magnetic field will flow such that it will create its own magnetic field that opposes the magnetic field that created it. A moving coil galvanometer is an instrument used for detection and measurement of small electric currents. When a current is passed through...
read more
An electric current induced by a changing magnetic field will flow such that it will create its own magnetic field that opposes the magnetic field that created it. A moving coil galvanometer is an instrument used for detection and measurement of small electric currents. When a current is passed through the coil in the direction PQRS, then the coil experiences a torque t = NIBA sina Since the magnified field is radial the plane of the coil is parallel to the magnetic field such that a = 90o and hence t = NIBA. The coil rotates and the phosphor bronze strip gets twisted. As a result a restoring torque comes into play trying to restore the coil back to original position. If f be the twist produced in the strip and C be the restoring torque per unit twist then the restoring torque = Cf. In equilibrium, torque in moving coil galvanometer where G is the galvanometer constant. This shows that galvanometer has a linear scale and detects the presence of current. read less
Comments
Dislike Bookmark

Life Is Beautiful

1)In 1835 Heinrich Lenz stated the law that now bears his name. An electric current induced by a changing magnetic field will flow such that it will create its own magnetic field that opposes the magnetic field that created it 2)moving coil galvanometer:A galvanometer is a type of sensitive ammeter:...
read more
1)In 1835 Heinrich Lenz stated the law that now bears his name. An electric current induced by a changing magnetic field will flow such that it will create its own magnetic field that opposes the magnetic field that created it 2)moving coil galvanometer:A galvanometer is a type of sensitive ammeter: an instrument for detecting electric current. It is an analog electromechanical actuator that produces a rotary deflection of some type of pointer in response to electric current through its coil in a magnetic field. Galvanometers were the first instruments used to detect and measure electric currents. Sensitive galvanometers were used to detect signals from long submarine cables, and to discover the electrical activity of the heart and brain. Some galvanometers use a solid pointer on a scale to show measurements; other very sensitive types use a miniature mirror and a beam of light to provide mechanical amplification of low-level signals. Initially a laboratory instrument relying on the Earth's own magnetic field to provide restoring force for the pointer, galvanometers were developed into compact, rugged, sensitive portable instruments essential to the development of electrotechnology. A type of galvanometer that records measurements permanently is the chart recorder. The term has expanded to include use of the same mechanism in recording, positioning, and servomechanism equipment read less
Comments
Dislike Bookmark

Teaching is my passion!!!!

If an induced current flows, its direction is always such that it will oppose the change which produced it
Comments
Dislike Bookmark

Lenz's law states that the current induced in a circuit due to a change or a motion in a magnetic field is so directed as to oppose the change in flux or to exert a mechanical force opposing the motion.
Comments
Dislike Bookmark

Im better in our work

In 1835 Heinrich Lenz stated the law that now bears his name. An electric current induced by a changing magnetic field will flow such that it will create its own magnetic field that opposes the magnetic field that created it. The simplest practical generator consists of a rectangular coil rotating in...
read more
In 1835 Heinrich Lenz stated the law that now bears his name. An electric current induced by a changing magnetic field will flow such that it will create its own magnetic field that opposes the magnetic field that created it. The simplest practical generator consists of a rectangular coil rotating in a uniform magnetic field. The magnetic field is usually supplied by a permanent magnet. read less
Comments
Dislike Bookmark

Deep Classes Nerul West Branch

E=-d¤/dt
Comments
Dislike Bookmark

Home Tutor

Lenz's law It is a common way of understanding how electromagnetic circuits obey Newton's third law and the conservation of energy. Lenz's law is named after Heinrich Lenz, and it says: If an induced current flows, its direction is always such that it will oppose the change which produced it. Lenz's...
read more
Lenz's law It is a common way of understanding how electromagnetic circuits obey Newton's third law and the conservation of energy.[1] Lenz's law is named after Heinrich Lenz, and it says: If an induced current flows, its direction is always such that it will oppose the change which produced it. Lenz's law is shown with the negative sign in Faraday's law of induction: which indicates that the induced voltage (?) and the change in magnetic flux (??) have opposite signs. Lenz's Law is a qualitative law that refers to the direction of induced current in relation to the effect which produces it without quantitatively relating their magnitudes. Magneto-cardio-gram (MCG) The first biomagnetic signal to be detected was the magnetocardiogram (MCG) by Baule and McFee (1963). The discovery raised a lot of optimism, as it was believed that MCG would provide as much new information about the heart's electric activity as had the ECG. Since the concept of the magnetic heart vector was introduced by Baule and McFee in 1970, studies have been conducted to detect the vectormagnetocardiogram (i.e., in which the heart is considered as a magnetic dipole). Though the detection of the magnetic heart vector is an obvious selection as the first clinical tool, many of the MCG studies of today have been made by mapping the normal component of the magnetic field of the heart around the thorax. read less
Comments
Dislike Bookmark

Mathematics

Lenz's law states that the current induced in a circuit due to a change or a motion in a magnetic field is so directed as to oppose the change in flux or to exert a mechanical force opposing the motion.
Comments
Dislike Bookmark

Classical dancer as well as Biology teacher

1. Lenz’s law states that when an emf is generated by a change in magnetic flux according to Faraday’s Law, the polarity of the induced emf is such, that it produces an current that’s magnetic field opposes the change which produces it. 2.Moving coil Galvanometer consists of a reflective disk attached...
read more
1. Lenz’s law states that when an emf is generated by a change in magnetic flux according to Faraday’s Law, the polarity of the induced emf is such, that it produces an current that’s magnetic field opposes the change which produces it. 2.Moving coil Galvanometer consists of a reflective disk attached to a wire coil suspended between the poles of a permanent magnet. When a direct current passes through the coil, it generates a magnetic field which interacts with the permanent magnet to cause the suspended coil (and its attached disk) to rotate. A light beam incident on the reflective disk will be directed to a calibrated scale so the degree of deflection, and hence the current, can be determined. This was made by Gambrell Bros. & Co. of London, England and dates from the early 20th century. read less
Comments
Dislike Bookmark

Classical dancer as well as Biology teacher

Moving coil galvanometer consists of a reflective disk attached to a wire coil suspended between the poles of a permanent magnet. When a direct current passes through the coil, it generates a magnetic field which interacts with the permanent magnet to cause the suspended coil (and its attached disk)...
read more
Moving coil galvanometer consists of a reflective disk attached to a wire coil suspended between the poles of a permanent magnet. When a direct current passes through the coil, it generates a magnetic field which interacts with the permanent magnet to cause the suspended coil (and its attached disk) to rotate. A light beam incident on the reflective disk will be directed to a calibrated scale so the degree of deflection, and hence the current, can be determined. This was made by Gambrell Bros. & Co. of London, England and dates from the early 20th century. read less
Comments
Dislike Bookmark

View 9 more Answers

Related Questions

What was India's GDP in financial year 2013-14?
1.2 trillion rupees
Mukund
1 0
9
How much should I charge for Class XI-XII physics tuition?
4000 per month
Manmohan
0 0
9
Which of the following usually is not a way to conserve water during a water shortage? 1. taking a shower instead of a bath 2. fixing leaky faucets 3. turning off the water while brushing your teeth 4. waiting until you have enough dishes to fill the dishwasher before running it
1
Sugantha
0 0
9
How can I get students for online teaching purpose and how I' ll be able get payment from them?
Net banking
Deepika
0 1
7
Why is it so dofficult to have my question answered?
Can you please post your question clearly. I have answered your previous question, I didn't get reply for it.
Esther

Now ask question in any of the 1000+ Categories, and get Answers from Tutors and Trainers on UrbanPro.com

Ask a Question

Related Lessons

ENGLISH
QUESTION 1.I'm taking a Japanese ___ at the moment. I'm going to have fish for my main ___. 2. n. euphony (a) tedious dwelling on a subject (b) a building where animals are butchered; slaughterhouse...

Sujoy Das

2 0
0
HRA: House Rent Allowance
What is HRA? HRA or House Rent Allowance is a component of salary provided by employer to his employee. If you receive HRA as part of your salary and you live in a rented accommodation, then you can claim...
F

FR Prashanth Reddy

Learning about DNA and genetics in Biology - Classes XI and XII
Biology is a very experimental field. Often students have difficulty understanding genetics and cell biology, especially at the school level. I recommend students to look at videos on youtube that animate...

Parvathy R.

0 0
0
TDS TCS For AY 2018-19 (FY 2017-18)
Points to be considered: 1. Surcharge & Education Cess will not be considered for the purpose of TDS except in case of TDS on salary payment. 2. Higher rate of TDS for not furnishing correct PAN...
F

FR Prashanth Reddy

Geography Gs & Optional
Earthquakes- Seismic Waves and Internal Structure of the Earth Seismic waves, the waves of energy that travel through the Earth as a result of an earthquake can tell us a lot about the internal structure...

Raghavendra K Ravi

0 0
0

Recommended Articles

Meet Urmila, an MBBS tutor from Bangalore

Urmila is a passionate teacher with over 8 years of experience in teaching. She is currently pursuing her Ph. D. She provides classes for Class 11, Class 12, MBBS and Medical tuition.  Urmila began her career in teaching long before she became a teacher. She used to provide classes for foreign national students in her college...

Read full article >

Meet Mohammad Wazid, a skilled trainer for...

Mohammad Wazid is a certified professional tutor for class 11 students. He has 6 years of teaching experience which he couples with an energetic attitude and a vision of making any subject easy for the students. Over the years he has developed skills with a capability of understanding the requirements of the students. This...

Read full article >

Meet Swati, a Hindi Tutor from Bangalore

Swati is a renowned Hindi tutor with 7 years of experience in teaching. She conducts classes for various students ranging from class 6- class 12 and also BA students. Having pursued her education at Madras University where she did her Masters in Hindi, Swati knows her way around students. She believes that each student...

Read full article >

Meet Raghunandan.G.H, a B. Tech Tutor from...

Raghunandan is a passionate teacher with a decade of teaching experience. Being a skilled trainer with extensive knowledge, he provides high-quality BTech, Class 10 and Class 12 tuition classes. His methods of teaching with real-time examples makes difficult topics simple to understand. He explains every concept in-detail...

Read full article >

Find Class 12 Tuition near you
Class 12 Tuition in Delhi
Class 12 Tuition in Bangalore
Class 12 Tuition in Hyderabad
Class 12 Tuition in Kolkata
Class 12 Tuition in Mumbai
Class 12 Tuition in Chennai
Class 12 Tuition in Pune
Class 12 Tuition in Jaipur
Class 12 Tuition in Lucknow
Class 12 Tuition in Noida
Online Tuition Class 12

Looking for Class 12 Tuition ?

Learn from the Best Tutors on UrbanPro

Are you a Tutor or Training Institute?

Join UrbanPro Today to find students near you
X

Looking for Class 12 Tuition Classes?

The best tutors for Class 12 Tuition Classes are on UrbanPro

  • Select the best Tutor
  • Book & Attend a Free Demo
  • Pay and start Learning

Take Class 12 Tuition with the Best Tutors

The best Tutors for Class 12 Tuition Classes are on UrbanPro

This website uses cookies

We use cookies to improve user experience. Choose what cookies you allow us to use. You can read more about our Cookie Policy in our Privacy Policy

Accept All
Decline All

UrbanPro.com is India's largest network of most trusted tutors and institutes. Over 55 lakh students rely on UrbanPro.com, to fulfill their learning requirements across 1,000+ categories. Using UrbanPro.com, parents, and students can compare multiple Tutors and Institutes and choose the one that best suits their requirements. More than 7.5 lakh verified Tutors and Institutes are helping millions of students every day and growing their tutoring business on UrbanPro.com. Whether you are looking for a tutor to learn mathematics, a German language trainer to brush up your German language skills or an institute to upgrade your IT skills, we have got the best selection of Tutors and Training Institutes for you. Read more

ThinkVidya Learning Pvt Ltd © 2010-2024All Rights Reserved