Home
Class 12
PHYSICS
A coil has a self-inductance of 0.05 hen...

A coil has a self-inductance of 0.05 henry. Find magnitude of the emf induced in it when the current flowing through it is changing at the rate `100 As^(-1)` 

A

10 Wb

B

20 Wb

C

10 `mu` Wb

D

20 `mu` Wb

Text Solution

Verified by Experts

The correct Answer is:
C
Promotional Banner

Topper's Solved these Questions

  • ELECTROMAGNETIC INDUCTION

    AAKASH SERIES|Exercise EXERCISE-III|29 Videos
  • ELECTROMAGNETIC INDUCTION

    AAKASH SERIES|Exercise EXERCISE - I (MAGNETIC FLUX, FARADAY.S LAW, LENZ.S LAW, AC GENERATOR)|26 Videos
  • ELECTROMAGNETIC INDUCTION

    AAKASH SERIES|Exercise EXERCISE-IB|18 Videos
  • ELECTRIC FIELD AND POTENTIAL

    AAKASH SERIES|Exercise PROBLEMS (LEVEL-II)|26 Videos
  • ELECTROMAGNETIC WAVES

    AAKASH SERIES|Exercise EXERCISE -II|22 Videos

Similar Questions

Explore conceptually related problems

Two different coils have self- inductances L_(1) = 16 mH and L_(2)= 12 mH. At a certain instant, the current in the two coils is increasing at the same rate and power supplied to the two coils is the same. Find the ratio of i) induced voltage ii) current iii) energy stored in the two coils at that instant.

When the current in a certain inductor coil is 5.0 A and is increasing at the rate of 10.0 A//s ,the magnitude of potential difference across the coil is 140 V .When the current is 5.0 A and decreasing at the rate of 10.0 A//s ,the potential difference is 60 V .The self inductance of the coil is :

Through a long solenoid of diameter 4.1 cm, having 100 turns per cm, a current I = 1A is flowing. At its centre, a 60 turns closely packed coil of diameter 3.1 cm si placed such that the coil is coaxial with the long solenoid. The current in the solenoid is reduced to zero at a steady rate in 10 ms. What is the magnitude of emf induced in the coil while the current in the solenoid is changing?

Two coils X and Y are linked such that emf E is induced in Y when the current in x is changing at the rate I' (= dI//dt) . If a current I_(0) is now made to flow through Y , the flux linked with X will be

A coil of inductance 0.2 henry is connected to 600 volt battery. At what rate, will the current in the coil grow when circuit is completed?

Three identical inductors are connected as shown in the figure. At the instant when current in inductor P is increasing at the rate of 0.0320 As^(-1) then magnitude of induced emf in it is 0.080 V. The equivalent inductance between the points A and B will be

A coil has a self inductance of 0.01H. The current through it is allowed to change at the rate of 1A in 10^(-2)s . Calculate the emf induced.

A coil of inductance 0.5 henry is connected to a 18 volt battery. Calculate the initial rate of growth of current.

What is the self -inductance of a coil which produce 5 V when the current changes from 3 A to 2 A in one millisecond ?

The current through two inductors of self inductance 12 mH and 30 mH is increasing with time at the same rate. Draw graphs showing the variation of the (a ) e.m.f. induced with the rate of change of current in each inductor. (b) enargy stored in each inductor with the current flowing through it. Compare the energy stored in the coils if power dissipated in the coil is same.

AAKASH SERIES-ELECTROMAGNETIC INDUCTION-EXERCISE-II
  1. The Wing span of an aeroplane is 20 metre . It is flying in a fie...

    Text Solution

    |

  2. A small piece of metal wire is dragged across the gap between the pole...

    Text Solution

    |

  3. A copper disc of radius 0.1 m is rotated about its natural axis with 1...

    Text Solution

    |

  4. A wheel with 10 metallic spokes each 0.5 m long is rotated with a spee...

    Text Solution

    |

  5. An E.M.F of 5 V is produced in an inductor, when the current changes a...

    Text Solution

    |

  6. A coil has a self-inductance of 0.05 henry. Find magnitude of the emf ...

    Text Solution

    |

  7. A long solenoid has 1000 truns. When a current of 4A flows through it...

    Text Solution

    |

  8. Calculate the equivalent resistance between the points A and B in Fig.

    Text Solution

    |

  9. If a change in current of 0.01 A in one coil produces a change in ma...

    Text Solution

    |

  10. The current in a coil is changed from 5A to 10A in 10^(-2)s. Then, an ...

    Text Solution

    |

  11. Two coaxial solenods are made by winding thin insulated wire over a pi...

    Text Solution

    |

  12. To emf induced in a secondary coil is 20000 V , when the current bre...

    Text Solution

    |

  13. Two coils of self-inductance 2 mH and 8 mH are placed, so close togeth...

    Text Solution

    |

  14. Two coaxial solenods are made by winding thin insulated wire over a pi...

    Text Solution

    |

  15. A 50 mh coil carries a current of 2 A. the energy stored in joules is

    Text Solution

    |

  16. A condenser of capacity 1 mu F and a resistance 0.5 mega-ohm are conne...

    Text Solution

    |

  17. An ideal coil of 10 H is joined in series with a resistance of 5Omega ...

    Text Solution

    |

  18. A capacitor is connected to a 12 V battery through a resistance of (10...

    Text Solution

    |

  19. A coil of self inductance 2.5 H and resistance 20 Omega is connected t...

    Text Solution

    |

  20. A 8 mu F capacitor is charged by a 400 V supply through 0.1 M Omega re...

    Text Solution

    |