Home
Class 12
PHYSICS
An LR circuit has L = 1.0 H R =20 Omeg...

An LR circuit has L = 1.0 H `R =20 Omega`. It is connected across an emf of `2.0 V at t=0`. Find `(di)/dt at (a) t =100ms, (b) t =200 ms and (c )t = 1.0 s`.

Text Solution

Verified by Experts

The correct Answer is:
A, B
Promotional Banner

Topper's Solved these Questions

  • ELECTROMAGNETIC INDUCTION

    RESONANCE|Exercise Exercis-1 PART 2|51 Videos
  • ELECTROMAGNETIC INDUCTION

    RESONANCE|Exercise Exercis-2 PART 1|15 Videos
  • ELECTROMAGNETIC INDUCTION

    RESONANCE|Exercise Problem|12 Videos
  • ELECTRODYNAMICS

    RESONANCE|Exercise Advanced level problems|31 Videos
  • ELECTROSTATICS

    RESONANCE|Exercise HLP|39 Videos

Similar Questions

Explore conceptually related problems

An LR circuit has L= 1.0 H and R=20 Omega . It is connected across an emf of 2.0 V at t=0. Find di/dt and Ldi/dt at t=50ms.

An LR series circuit has L=1 H and R=1 Omega .It is connected across an emf of 2 V .The maximum rate at which energy is stored in the magnetic field is:

Two coil A and B have inductances 1.0 H and 2.0 H respectively. The resistance of each coil is 10 Omega . Each coil is connected to an ideal battery of emf 2.0 V at t = 0 Let i_A and i_B be the current in the two circuit at time t. Find the raito i_A/ I_B at (a) t=100ms, (b) t= 200 ms and (c ) t = 1 s.

The time constant of an LR circuit is 40 ms. The circuit is connected at t= 0 and the steady state current is found ot be 2.0 A. Find the current at (a) t= 10 ms (b) t =20ms, (c ) t =100ms and (d) t = 1 s.

An inductor-coil of inductance 20 mH having resistance 10 Omega is joined to an ideal battery of emf 5.0 V. Find the rate of change of the induced emf at t=0, (b) t = 10 ms and (c ) t = 1.0s.

An LR circuit having L = 4.0 H, R = 1.0 Omega and epsilon = 6.0 V is switched on at t = 0 . find the power dissipated in joule heating at t = 4.0 s .

A resistor of resistance 100 Omega is connected to an AC source epsilon = (12 V) sin (250 pi s^(-1))t . Find the energy dissipated as heat during t = 0 to t = 1.0 ms .

The plates of a capacitor of capacitance 10(mu)F ,charged to 60(mu)C ,are joined together by a wire of resistance 10(Omega) at t=0.Find the charge on the capacitor in the circuit at (a)t=0,(b)t=30(mu)s,(c )t=120(mu)s and (d)t=1.0ms.

An inductor coil of resistance 10 Omega and inductance 120 mH is connected across a battery of emf 6 V and internal resistance 2 Omega . Find the charge which flows through the inductor in (a) 10 ms, (b) 20ms and (c ) 100ms after the connections are made.

RESONANCE-ELECTROMAGNETIC INDUCTION-Exercis-1
  1. A long wire carries a current of 4.00 A. Find the energy stored in the...

    Text Solution

    |

  2. What is the magnetic energy density (in terms of standard constant & r...

    Text Solution

    |

  3. Suppose the emf of the battery, the circuit shown varies with time t s...

    Text Solution

    |

  4. The network shown in Fig. is a part of a complete circuit.What is the ...

    Text Solution

    |

  5. In figure,xi=100 V,R(1)=10 Omega,R(2)=20 Omega, R(3)=30 Omega and L= 2...

    Text Solution

    |

  6. A coil having inductance 2.0 H and resistance 20 Omega is connected t...

    Text Solution

    |

  7. A solenoid of resistance 50 Omega and inductance 80 H is connected to ...

    Text Solution

    |

  8. A solenoid has an inductance of 10 henty and a resistance of 2 ohm. It...

    Text Solution

    |

  9. A coil of resistance 40 Omega is connected across a 4.0 V battery. 0...

    Text Solution

    |

  10. An inductor of inducance 5.0 H, having a negligible resistance, is con...

    Text Solution

    |

  11. An LR circuit has L = 1.0 H R =20 Omega. It is connected across an e...

    Text Solution

    |

  12. An inductor-coil of inductance 20 mH having resistance 10 Omega is jo...

    Text Solution

    |

  13. Consider the circuit shown in .(a) find the current through the batter...

    Text Solution

    |

  14. A superconducting loop of radius R has self inductance L.A uniform & c...

    Text Solution

    |

  15. In a circuit S(1) remains closed for a long time and S(2) remain open....

    Text Solution

    |

  16. Show that if two inductors with equal inductance L are connected in pa...

    Text Solution

    |

  17. Two coils of inductances L(1), and L(2) are linked such that their mut...

    Text Solution

    |

  18. The average emf induced in the secondary coil is 0.1 V when the curren...

    Text Solution

    |

  19. The mutual inductance between two coils is 0.5 H.It the current in one...

    Text Solution

    |

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

    Text Solution

    |