Home
Class 12
PHYSICS
An 80muC charge is given to the 4muF cap...

An `80muC` charge is given to the `4muF` capacitor in the circuit shown in the figure so that the upper plate A is positively charged. An unknown resistance R is connected in the left limb. As soon as the switch S in the central limb is closed, a current of 2 A flows through the `2Omega` resistor in the central limb. The capacitive time constant for the circuit is

A

`56mus`

B

`8mus`

C

`200mus`

D

`40mus`

Text Solution

Verified by Experts

The correct Answer is:
D
Promotional Banner

Topper's Solved these Questions

  • NTA JEE MOCK TEST 86

    NTA MOCK TESTS|Exercise PHYSICS|25 Videos

  • NTA JEE MOCK TEST 88

    NTA MOCK TESTS|Exercise PHYSICS|25 Videos

Similar Questions

Explore conceptually related problems

A charged capacitor of capacitance 40 muF is discharged through a 50Omega resistance. Determine the time constant of the circuit.

In the circuit shown in figure find: a. the current in the 3.00 Omega resistor,b. the unknown emfs E_1 and E_2 and c the resistance R .

In the circuit shown in figure 3.242 capacitor is charged with 50muC charge. Find the current in 4Omega resistance just after switch S is closed.

In the circuit shown in figure-3.345 the capacitor of capacitance C is charged to a potential difference V. The current in the circuit just after the closing of switch S is :

In the circuit shown in the figure, if switches S_(1) and S_(2) have been closed for a long time, then charge on the capacitor.

In the circuit shown in figure switch S is closed at time t=0 At what time current through 3Omega resistance and 1H inductor are equal?

For the circuit shown in figure below, At t = 0, switch is closed, the initial current through resistor and final charge on capacitor are

In connection with the circuit drawn below, the value of current flowing through 2 k Omega resistor is _____ xx 10^(-4)A

NTA MOCK TESTS-NTA JEE MOCK TEST 87-PHYSICS
  1. A radioactive material decays by simulataneous emission of two particl...

    Text Solution

    |

  2. A voltmeter of variable ranges 3V, 15V, 150 V is to designed by connec...

    Text Solution

    |

  3. If two lenses of +5 dioptres are mounted at some distance apart, the e...

    Text Solution

    |

  4. Find the ratio of energies of photons produced due to transition of el...

    Text Solution

    |

  5. A block of mass m is kept on an inclined plane of a lift moving down w...

    Text Solution

    |

  6. A parallel plate capacitor of area A, plate separation d and capacitan...

    Text Solution

    |

  7. In a conical pendulum arrangement, a string of length 1 m is fixed at ...

    Text Solution

    |

  8. Let M be the mass and L be the length of a thin uniform rod. In first ...

    Text Solution

    |

  9. A red bulb and violet bulb of equal power emits n(R ) and n(v) number ...

    Text Solution

    |

  10. A body is thrown from the surface of the earth with velocity u m/s. Th...

    Text Solution

    |

  11. A cyclist is moving with a constant acceleration of 1.2 m/s2 on a stra...

    Text Solution

    |

  12. If the earth shrinks such that its density becomes 8 times to the pres...

    Text Solution

    |

  13. Water from a tap emerges vertically downwards with an initial velocity...

    Text Solution

    |

  14. An 80muC charge is given to the 4muF capacitor in the circuit shown in...

    Text Solution

    |

  15. A proton moves with a speed of 5.0times10^(6)ms^(-1) along the x -axis...

    Text Solution

    |

  16. Initially, a beaker has 100 g of water at temperature 90^(@)C. Later a...

    Text Solution

    |

  17. Let x={:[(a^(2)b^(2))/(c)]:} be the physical quantity. If the percenta...

    Text Solution

    |

  18. Light of wavelength 600 nm is incident normally on a slit of width 0.2...

    Text Solution

    |

  19. A stationary source is emitting sound at a fixed frequency f(0), which...

    Text Solution

    |

  20. Power applied to a particle varices with time as P =(3t^(2)-2t + 1) wa...

    Text Solution

    |