Home
Class 12
PHYSICS
Two circuits have coefficient of mutual ...

Two circuits have coefficient of mutual induction of `0.09` henry. Average e.m.f. induced in the secondary by a change of current from `0` to `20` ampere in `0.006` second in the primary will be

A

`240 V`

B

`230 V`

C

`100 V`

D

`300 V`

Text Solution

Verified by Experts

The correct Answer is:
C
`e=M(di)/(dt)impliese=0.1xx((20-0))/(0.02)=100V`
Promotional Banner

Topper's Solved these Questions

  • ELECTROMAGNETIC INDUCTION

    A2Z|Exercise Inductor Circuits|31 Videos

  • ELECTROMAGNETIC INDUCTION

    A2Z|Exercise Applications Of Emi|58 Videos

  • ELECTROMAGNETIC INDUCTION

    A2Z|Exercise Section D - Chapter End Test|30 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

Two circuits have mutual inductance of 0.1 H . What average e.m.f. is induced in one circuit when the current in the other circuit changes from 0 to 20 A in 0.02 s

The average self-induced emf in a 25m H solenoid when the current in it falls from 0.2 A to 0 A in 0.01 second, is

A current of 0.5 A in the primary coil of a transfomer is reduced to zero at a uniform rate in 0.1 second. If the coefficient of mutual inductance is 3H, what is the emf induced in the secondary coil and charge in the magnetic flux per turn in the secondary coil if it has 50 turns?

In a transformer , the coefficient of mutual inductance between the primary and the secondary coil is 0.2 henry. When the current changes by 5 ampere//second in the primary, the induced e.m.f. in the secondary will be

The e.m.f. induced in a 1 milli henry inductor, in which the current changes from 5A to 3A in 10^(-3) second is

The coefficient of mutual induction between two coils is 4H . If the current in the primary reduces from 5A to zero in 10^(-3) second, then the induced e.m.f. in the secondary coil will be

A current of 10A in the primary coil of a circuit is reduced to zero. If the coefficient of mutual inductance is 3 H and emf induced in the secondary coil is 30 kV, time taken for the change of current is

The coefficient of mutual induction between two circuits is equal to the, emf produced in one circuit when the current in the second circuit is

The co-efficient of mutual induction between primary and secondary coil is 2H . Calculate induced e.m.f. If current of 4 A is cut off in 2.5 xx 10^(-4) seconds.

A2Z-ELECTROMAGNETIC INDUCTION-Motional And Rotational Emf
  1. If in a coil rate of change of area is 5m^(2)//millisecond and current...

    Text Solution

    |

  2. The inductance of a solenoid 0.5m long of cross-sectional area 20cm^(2...

    Text Solution

    |

  3. An e.m.f. of 12"volts" is produced in a coil when the current in it ch...

    Text Solution

    |

  4. If a change in current of 0.01 A in one coil produces change in magnet...

    Text Solution

    |

  5. A 100mH coil carries a current of 1 ampere. Energy stored in its magne...

    Text Solution

    |

  6. A solenoid of length l metre has self-inductance L henry. If number of...

    Text Solution

    |

  7. Two coils A and B having turns 300 and 600 respectively are placed nea...

    Text Solution

    |

  8. The coefficient of mutual inductance of two coils is 6 mH. If the curr...

    Text Solution

    |

  9. The current in a coil of inductance 5H decreases at the rate of 2A//a....

    Text Solution

    |

  10. The self-induced e.m.f in a 0.1H coil when the current in it is changi...

    Text Solution

    |

  11. Two circuits have coefficient of mutual induction of 0.09 henry. Avera...

    Text Solution

    |

  12. An air core solenoid has 1000turns and is one metre long. Its cross-se...

    Text Solution

    |

  13. When the current changes from +2A to -2A in 0.5 second an emf of 8V is...

    Text Solution

    |

  14. A coil resistance 20 W and inductance 5 H is connected with a 100 V ba...

    Text Solution

    |

  15. When the current in a coil changeg from 8 amperes to 2 amperes in 3xx1...

    Text Solution

    |

  16. When the current in a coil changeg from 8 amperes to 2 amperes in 3xx1...

    Text Solution

    |

  17. A coil of N=100 turns carries a current I=5 A and creates a magnetic f...

    Text Solution

    |

  18. Two identicaly induction coils each of inductance L joined in series ...

    Text Solution

    |

  19. A coil of Cu wire (radius r, self-inductance L) is bent in two concen...

    Text Solution

    |

  20. A long solenoid of length L, cross section A having N(1) turns has abo...

    Text Solution

    |