Home
Class 12
PHYSICS
If the current 30A flowing in the primar...

If the current `30A` flowing in the primary coil is made zero in `0.1` sec. the emf induced in the secondary coil is `1.5` volt. The mutual inductance between the coil is

A

`0.005H`

B

`1.05H`

C

`0.1H`

D

`0.2H`

Text Solution

Verified by Experts

The correct Answer is:
A

`e=M(di)/(dt)implies1.5=Mxx(30)/(0.1)impliesM=0.05H`
Promotional Banner

Topper's Solved these Questions

  • ELECTROMAGNETIC INDUCTION

    A2Z|Exercise AIIMS Questions|27 Videos
  • ELECTRIC POTENTIAL & CAPACITANCE

    A2Z|Exercise Section D - Chapter End Test|29 Videos
  • ELECTROMAGNETIC WAVES AND COMMUNICATION SYSTEM

    A2Z|Exercise Section D - Chapter End Test|30 Videos

Similar Questions

Explore conceptually related problems

If a current of 3 A flowing in the primary coil is reduced to zero in 0.01 s, the e.m.f induced in the secondary coil is 750 V. What is the mutual inductance between the two coil ?

If a current of 3A, flowing in the primary coil is reduced to zero in 10^(-3) s , the induced e.m.f in the secondary coil is 15000 V. The mutual inductance between the two coils is

If a current of 3.0 amperes flowing in the primary coil is reduced to zero in 0.001 second, then the induced e.m.f. in the secondary coil is 15000 "volts" . The mutual inductance between the two coils is

If the current in the primary coil is reduced from 3.0 ampere to zero in 0.001 second, the induced e.m.f in the secondary coil is 1500 volt. The mutual inductance of the two coils will be-

With the decrease of current in the primary coil from 2 amperes to zero value in 0.01 s the emf generated in the secondary coil is 1000 volts. The mutual inductance of the two coils is

If the current in the primary coil is reduced from 3A to zero in 10 second, then the induced e.m.f. in the secondary is 15xx10^(-3) volt. The mutual inductance of the coil will be

The current decays from 5A to 2A in 0.01 s in a coil. The emf induced in a coil nearby it is 30V . The mutual inductance between the coils is

If the current in the primary circuit of a pair of coils changes from 10 A to 0 in 0.1 s, calculate (i) the induced emf in the secondary if the mutual inductance between the two coils is 2 H and (ii) the change of flux per turn in the secondary if it has 500 turns.

When the primary current in the spark-coil of a car changes from 4A to zero in 10muS , an emf of 40,000 V is induced in the secondary. The mutual inductance between the primary and the secondary windings of the spark-coil will be -

When a current of 5A flows in the primary coil, then the flux linked with the secondary coil is 200 weber. The value of coefficient of mutual induction will be

A2Z-ELECTROMAGNETIC INDUCTION-Section D - Chapter End Test
  1. Find out the e.m.f. produced when the current change from 0 to 1A in 1...

    Text Solution

    |

  2. A coil of 100 turns carries a current of 5mA and creates a magnetic fl...

    Text Solution

    |

  3. If the current 30A flowing in the primary coil is made zero in 0.1 sec...

    Text Solution

    |

  4. A square loop of side 5 cm enters a magnetic field with 1cms^(-1). The...

    Text Solution

    |

  5. A small coil is introduced between the poles of an electromagnet so th...

    Text Solution

    |

  6. Two circular coils A and B are facing each other as shown in figure. T...

    Text Solution

    |

  7. If in a coil rate of change of area is (5meter^(2))/(milli second)and ...

    Text Solution

    |

  8. Two coils P and Q are placed co-axially and carry current I and I' re...

    Text Solution

    |

  9. The phase difference between the flux linkage and the induced e.m.f. i...

    Text Solution

    |

  10. A hundred turns of insulated copper wire are wrapped around an iron cy...

    Text Solution

    |

  11. In circular coil, when no. of turns is doubled and resistance becomes ...

    Text Solution

    |

  12. In a transformer, number of turns in the primary coil are 140 and that...

    Text Solution

    |

  13. Two coil are placed close to each other. The mutual inductance of the ...

    Text Solution

    |

  14. When the current changes from +2A to -2A in 0.05 second, an e.m.f. of ...

    Text Solution

    |

  15. A coil having n turns and resistance R Omega is connected with a galva...

    Text Solution

    |

  16. A metal conductor of length 1m rotates vertically about one of its end...

    Text Solution

    |

  17. A coil of inductance 300mh and resistance 2Omega is connected to a sou...

    Text Solution

    |

  18. A small square loop of wire of side l is placed inside a large square ...

    Text Solution

    |

  19. A circular loop of radius R, carrying current I, lies in x-y plane wit...

    Text Solution

    |

  20. A metallic square loop ABCD is moving in its own plane with velocity v...

    Text Solution

    |