Home
Class 11
PHYSICS
A charged capacitor is allowed to discha...

A charged capacitor is allowed to discharged three a resistor `2 Omega` by closing the switch `S` at the `t=0`. At time `t = 2 mus`, the reading of the falls half of its initial value. The resistance of ammeter is equal to

A

0

B

`2 Omega`

C

`4 Omega`

D

None of these

Text Solution

Verified by Experts

The correct Answer is:
D
Promotional Banner

Topper's Solved these Questions

  • ELECTROSTATICS

    DC PANDEY|Exercise Comprehension|36 Videos

  • ELECTROSTATICS

    DC PANDEY|Exercise Matrix Matching|2 Videos

  • ELECTROSTATICS

    DC PANDEY|Exercise Integer|17 Videos

  • ELASTICITY

    DC PANDEY|Exercise Medical entrances s gallery|21 Videos

  • EXPERIMENTS

    DC PANDEY|Exercise Subjective|15 Videos

Similar Questions

Explore conceptually related problems

A charged capacitor is allowed to dischare through a resistor by closing the key at the instant t=0 . At the instant t=(ln 4)mus , the reading of the ammeter falls half the initial vaslue. The resistance of the ammeter is equal to

In the circuit shown, R=2 Omega and V = 20 volt. With switch S open the reading of ammeter is half its reading when ‘S’ is closed. Calculate the resistance of the ammeter.

In an R-C circuit capacitor lost 63% of initial charge in 5 ms when it discharges through a resistor of R Omega . If it discharges through a resistor of 2R Omega , then it lost 63% of its initial chargein K ms. Find the value of K.

LetC be the capacitance of a capacitor discharging through a resistor R. Suppose t_1 is the time taken for the energy stored in the capacitor to reduce to half its initial value and t_2 is the time taken for the charge to reduce to one-fourth its initial value. Then the ratio t_1//t_2 will be

An ammeter and a voltmeter are initially connected in series to a battery of zero internal resistance. When switch S_(1) is closed the reading of the voltmeter becomes half of the initial, whereas the reading of the ammeter becomes double. If now switch S_(2) is also closed, then reading of ammeter becomes :

Find how the voltage across the capacitor C varies with time t after closing of the switch S_(w) at the moment t=0 . .

In the circuit shown, the capacitor C_1 is initially charged with charge q_0 . The switch S is closed at time t = 0 . The charge on C_2 after time t is

The figure-3.375 shows two circuits with a charged capacitor that is to be discharged through a resistor as shown in the figure. The ratio of initial charges on capacitors is given as q_(2)//q_(1) = 2 . If both switches are closed at time t= 0 , the charges become equal at 10^(-4) ln 2 s . Find the resistance R.

DC PANDEY-ELECTROSTATICS-JEE Advanced
  1. A capacitor is filled with an insulator and a certain potential differ...

    Text Solution

    |

  2. In the circuit shown in figure potential difference between A and B is

    Text Solution

    |

  3. A, B, C, D, P, and Q are points in a uniform electric field. The poten...

    Text Solution

    |

  4. The dipole moment of a system of charge +q distribyted uniformly on a...

    Text Solution

    |

  5. There are four concentric shells A,B, C and D of radii a,2a,3a and 4a ...

    Text Solution

    |

  6. Two capacitor having capacitances 8muF and 16 muF have breaking voltag...

    Text Solution

    |

  7. Three plates A,B and C each of area 0.1m^(2) are separated by 0.885 mm...

    Text Solution

    |

  8. A capacitor of capacitance C is initially charged to a potential diffe...

    Text Solution

    |

  9. A capacitor stores 60muC charge when connected across a battery. When ...

    Text Solution

    |

  10. A charged capacitor is allowed to discharged three a resistor 2 Omega ...

    Text Solution

    |

  11. A capacitor C=100 muF is connected to three resistor each of resistanc...

    Text Solution

    |

  12. A charged particle of charge 'Q' is held fixed and another charged par...

    Text Solution

    |

  13. In a regular polygon of n sides, each corner is at a distance r from t...

    Text Solution

    |

  14. A bullet of mass m and charge q is fired towards a solid uniformly cha...

    Text Solution

    |

  15. In the circuit shown, switch Sis closed att=O. Let i(1) and i(2) be th...

    Text Solution

    |

  16. A capacitor of capacitance C is allowed to discharge through a resista...

    Text Solution

    |

  17. A capacitor of capacitance 3muF is first charged by connecting it acro...

    Text Solution

    |

  18. A capacitor of capacitance 6 mu F and initial charge 160 muC is connec...

    Text Solution

    |

  19. In the given circuit the quantity of charge that flows to ground long ...

    Text Solution

    |

  20. A large sheet carries uniform surface charge density sigma . A rod of ...

    Text Solution

    |