Home
Class 11
PHYSICS
A coil of inductance 300mh and resistanc...

A coil of inductance `300mh` and resistance `2Omega` is connected to a source of voltage `2V`. The current reaches half of its steady state value in

A

0.1s

B

0.05 s

C

0.3 a

D

0.15 s

Text Solution

Verified by Experts

Promotional Banner

Topper's Solved these Questions

Similar Questions

Explore conceptually related problems

A coil of inductance 300mH and resistance 2 Omega. The current reaches half of its steady state value in

A solenoid of inductance 50 mH and resistance 10 Omega is connected to a battery of 6V. Find the time elapsed before the current acquires half of its steady - stae value.

A coil of inductance 8.4 mH and resistance 6 Omega is connected to a 12 V battery. The current in the coil is 1.0 A at approximately the time.

A coil of inductance 0.2 H and 1.0 W resistance is connected to a 90 V source. At what rate will the current in the coil grow at the instant the coil is connected to the source?

A coil o finductanc e 8.4mH and resistance 6Omega is connected to a 12V battery. The current in the coil is 1.0A in the time (approx .)

A coil of inductance L = 300 mH and resitance R = 140 m Omega is connected to a constant voltage source. How soon will the coil current reach eta = 50 % of the steady-state value ?

A coil of inductance 8.4 mH and resistance 6 (Omega) is connected to a 12 V battery. The current in the coil is 1.0 A at approximately the time

DISHA-ALTERNATING CURRENT-PHYSICS
  1. For the circuit shown in the fig., the current through the inductor is...

    Text Solution

    |

  2. A capacitor has capacity C and reactance X. If capacitance and frequen...

    Text Solution

    |

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

    Text Solution

    |

  4. In an AC circuit, a resistance of Rohm is connected is series with an ...

    Text Solution

    |

  5. A bulb is rated at 100V, 100W. It can be treated as a resistor. Find o...

    Text Solution

    |

  6. An ac source of angular frequency omega is fed across a resistor R and...

    Text Solution

    |

  7. Large transformers, when used for some time, become hot and are cooled...

    Text Solution

    |

  8. An inductor of inductance L = 400 mH and resistors of resistance R(1) ...

    Text Solution

    |

  9. An ideal coil of 10H is connected in series with a resistance of 5(Ome...

    Text Solution

    |

  10. In an A.C. circuit, the current flowing in inductance is I = 5 sin (10...

    Text Solution

    |

  11. In an oscillating LC circuit the maximum charge on the capacitor is Q....

    Text Solution

    |

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

    Text Solution

    |

  13. For an LCR series circuit with an aac source of angular frequency omeg...

    Text Solution

    |

  14. The rms value of potential difference V shown in the figure is

    Text Solution

    |

  15. Which of the following statements is/are incorrect?

    Text Solution

    |

  16. A lamp consumes only 50% of peak power in an a.c. circuit. What is the...

    Text Solution

    |

  17. A step down transformer reduces 220 V to 110 V. The primary draws 5 am...

    Text Solution

    |

  18. The voltage time (V-t) graph for triangular wave having peak value V(0...

    Text Solution

    |

  19. The tuning circuit of a radio receiver has a resistance of 50Omega , a...

    Text Solution

    |

  20. In an alternating current circuit in which an inductance and capacitan...

    Text Solution

    |