Home
Class 12
PHYSICS
An inductor (L = 100 mH), a resistor (R ...

An inductor (L = 100 mH), a resistor (R = `100Omega`) and a battery (E = 100V) are initially connected in series as shown in the figure. After a long time, the battery is disconnected after short-circuiting the points A and B. The current in the circuit 1 ms after the short-circuit is

A

`1 A`

B

`1//e A`

C

`e A`

D

`0.1 A`

Text Solution

Verified by Experts

The correct Answer is:
B

`l=l_(0)e^(-Rt//L)=1/eA`.
Promotional Banner

Topper's Solved these Questions

  • ELECTROMAGNETIC INDUCTION

    RESONANCE ENGLISH|Exercise Exercis-3 PART 3|16 Videos
  • ELECTROMAGNETIC INDUCTION

    RESONANCE ENGLISH|Exercise A.l.P|19 Videos
  • ELECTROMAGNETIC INDUCTION

    RESONANCE ENGLISH|Exercise Exercis-3 PART 1|18 Videos
  • ELECTRODYNAMICS

    RESONANCE ENGLISH|Exercise Advanced level problems|31 Videos
  • ELECTROSTATICS

    RESONANCE ENGLISH|Exercise HLP|40 Videos

Similar Questions

Explore conceptually related problems

An inductor (L =20 mH) , a resistor ( R = 100 Omega) and a battery (epsilon = 10 V) are connected in series. After along time the circuit is short- circuited and then the battery is disconnected. Find the current in the circuit 1ms after short- circuiting.

An inductor (L = 20 mH) , a resistor (R = 100 Omega) and a battery (varepsilon = 10 V) are connected in series. Find (a) the time constant, (b) the maximum current and (c ) the time elapsed before the current reaches 99% of the maximum value.

Three resistors are connected to a 6 V battery as shown in the figure Calculate: the equivalent resistance of the circuit

An inductor of 10mH is connected to a 18V battery through a resistor of 10 kOmega and a switch. After a long time, when the maximum current is set up in the circuit, the battery is disconnected from the circuit. Calculate the current in the circuit after 15mu s

The charge on the 4 uF capacitor, when a battery of 20 V is connected across points A and B in the circuit as shown in the figure is

An inductor (L =0.03 H) and a resistor (R = 0.15k(Omega)) are connected in series to a battery of 15 V EMF in a circuit shown below. The key K_(1) is opened and Key K_(2) is closed simultaneously. At t =1 ms, the current in the circuit will be (e^(5) = 150)

Three resistors are connected to a 6 V battery as shown in the figure given below : Calculate : total current in the circuit.

An idal coil of 10 is connected in series with a resitance of 5Omega and a battery of 5V. After 2s, after the connection is made, the current flowing ( in ampere) in the circuit is

Shown in the figure is an R-L circuit. Just after the key (K) is closed

An inductor of inductance L = 400 mH and resistors of resistance R_(1) = 2Omega and R_(2) = 2Omega are connected to a battery of emf 12 V as shown in the figure. The internal resistance of the battery is negligible. The switch S is closed at t = 0 . The potential drop across L as a function of time is

RESONANCE ENGLISH-ELECTROMAGNETIC INDUCTION-Exercis-3 PART 2
  1. One conducting U-tube can slide inside another as shown in figure, mai...

    Text Solution

    |

  2. A coil of inductance 300 mH and resistance 2Omega is conneted to a sou...

    Text Solution

    |

  3. An inductor (L = 100 mH), a resistor (R = 100Omega) and a battery (E =...

    Text Solution

    |

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

    Text Solution

    |

  5. An inductor of inductance L = 400 mH and resistors of resistances R(1)...

    Text Solution

    |

  6. A rectangular loop has a sliding connector PQ of length l and resistan...

    Text Solution

    |

  7. A fully charged capacitor C with initial charge Q(0) is connected to a...

    Text Solution

    |

  8. A boat is moving due east in a region where the earth's magnetic field...

    Text Solution

    |

  9. A horizontal straight wire 20 m long extending from east to west falli...

    Text Solution

    |

  10. A coil is suspended in a uniform magnetic field, with the plane of the...

    Text Solution

    |

  11. A metallic rod of length 'l' is tied to a string of length 2l and made...

    Text Solution

    |

  12. A circular loop of radius 0.3 cm lies parallel to a much bigger circul...

    Text Solution

    |

  13. In an LCR circuit as shown below both switches are open initially. Now...

    Text Solution

    |

  14. In the circuit shown here, the point 'C' is kept connected to point 'A...

    Text Solution

    |

  15. An inductor (L = 0.03H) and a resistor (R = 0.15Omega) are connected i...

    Text Solution

    |

  16. An LCR curcuit is equivalent to a damped pendulum. In an LCR circuit t...

    Text Solution

    |