Browse by Stream
QnA
Home
QnA
Go To Your Study Dashboard

Get Answers to all your Questions

header-bg qa
  • Home
  • Engineering
  • Solve! An e.m.f. of 5 millivolt is induced in a coil when in a nearby placed another coil, the current changes by 5 ampere in 0.1 second. The coefficient of mutual induction between the two coils will be :

An e.m.f. of 5 millivolt is induced in a coil when in a nearby placed another coil, the current changes by 5 ampere in 0.1 second. The coefficient of mutual induction between the two coils will be :

  • Option 1)

    1 Henry

  • Option 2)

      0.1 Henry

  • Option 3)

    0.1 millihenry

  • Option 4)

     0.01 millihenry

 

Answers (6)

best_answer

 

According to Faraday's Second Law -

\varepsilon _{2}= -N_{2}\frac{d\phi_{2}}{dt}= -M\frac{dI_{1}}{dt}

-

 

 \varepsilon = M\cdot \frac{dI}{dt}\Rightarrow 5mv = M\times \left ( \frac{5}{0.1} \right )

M=0.1mH


Option 1)

1 Henry

This solution is incorrect

Option 2)

  0.1 Henry

This solution is incorrect

Option 3)

0.1 millihenry

This solution is correct

Option 4)

 0.01 millihenry

This solution is incorrect

Posted by

divya.saini

View full answer

3

 

Posted by

Daniel

View full answer

3

Posted by

Daniel

View full answer

3

Posted by

Kunche vinod

View full answer

0.1mh

 

Posted by

Prerna sakharkar

View full answer

Option 3) 0.1 millihenry

Posted by

Rwirup Narzary

View full answer

Similar Questions

Trending Articles/News

anam-khan

BITSAT 2024 application correction facility begins tomorrow; editable fields
anam-khan

BITSAT 2024 registration window closes tomorrow; exam from May 20
anam-khan

BITSAT 2024 registration deadline extended till April 16; session 1 exam from May 19 to 24

Latest Question