Home
Class 12
PHYSICS
A capacitor C with a charge Q(0) is conn...

A capacitor C with a charge `Q_(0)` is connected across an inductor through a switch S. If at t=0, the switch is closed, then find the instantaneous charge q on the upper plate of capacitor.

A

`q=2Q_(0)sin(sqrt(1/(LC))t+pi/2)`

B

`q=Q_(0)/2sin(sqrt(1/(LC))t+pi/2)`

C

`q=Q_(0)sin(sqrt(1/(LC))t+pi/2)`

D

`q=Q_(0)sin(sqrt(1/(LC))t-pi/2)`

Text Solution

Verified by Experts

The correct Answer is:
C
Promotional Banner

Topper's Solved these Questions

  • ALTERNATING CURRENT

    MOTION|Exercise EXERCISE - 2 (LEVEL - II)|5 Videos

  • ALTERNATING CURRENT

    MOTION|Exercise EXERCISE - 3 (LEVEL - I)|11 Videos

  • ALTERNATING CURRENT

    MOTION|Exercise EXERCISE - 1|20 Videos

  • 10 ROTATIONAL

    MOTION|Exercise Exercise - 4 (Level - II)|49 Videos

  • ATOMIC STRUCTURE & X-RAY

    MOTION|Exercise Exercise - 2|31 Videos

Similar Questions

Explore conceptually related problems

A capacitor is charged to a potential of V_(0) . It is connected with an inductor through a switch S. The switch is closed at time t=0. Which of the following statement(s) is/are correct?

In the circuit shown in figure, the capacitor is charged with a cell of 5V .If the switch is closed at t=0 , then at t=12s , charge on the capacitor is

In the circuit shown, a capacitor charged to a potential difference V_(0) is connected to an uncharged capacitor through a resistor at t=0 , by closing the switch. Find current in the circuit as function of time. .

Figure-5.150 shows LC circuit with initial charge on capacitor 200 mu C . If at t=0 switch is closed, find the first instant when energy stored in inductor becomes one third that of capacitor.

The charge on each of the capacitors 0.16 ms after the switch S is closed in figure is :

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 the circuit shown switches S_(1) and S_(2) have been closed for 1 sec and S_(2) remained open.Just after 1 second is over switch S_(2) is closed and S_(1),S_(3) are opened.Find after that instant The charge on the upper plate of the capacitor as function of time taking the instant of switching on of S_(2) and switching off all time switches to be t=0 is q=x xx10^(-2)cos (t+pi/4) .Findout value of x .

MOTION-ALTERNATING CURRENT-EXERCISE - 2 (LEVEL - I)
  1. In an a.c circuit, V & I are given by V = 100 sin (100 t) volt. I = ...

    Text Solution

    |

  2. If I(1), I(2), I(3) " and " I(4) are the respective r.m.s. values of t...

    Text Solution

    |

  3. If instantaneous value of current is I = 10 sin (314 t) A, then the av...

    Text Solution

    |

  4. In a circuit an a.c. current and a d, c. current are supplied together...

    Text Solution

    |

  5. The emf and the current in a circuit are – E=12sin(100pit),i=4sin(100p...

    Text Solution

    |

  6. The value of alternating e.m.f. is e = 500 sin 100pit, then the freque...

    Text Solution

    |

  7. In a L-R circuit, the value of L is (0.4/(pi)) henry and the value of ...

    Text Solution

    |

  8. A series LCR circuit is tuned to resonance. The impedance of the circu...

    Text Solution

    |

  9. A capacitor C with a charge Q(0) is connected across an inductor throu...

    Text Solution

    |

  10. When 100" volt" dc is applied across a coil, a current of 1 amp flows ...

    Text Solution

    |

  11. A series circuit consists of a resistance, inductance and capacitance....

    Text Solution

    |

  12. Power factor of an L-R series circuit is 0.6 and that of a C-R series ...

    Text Solution

    |

  13. The potential difference V across and the current I flowing through an...

    Text Solution

    |

  14. A voltage of peak value 283 V and varying frequency is applied to seri...

    Text Solution

    |

  15. The power factor of the circuit in fig. is 1//sqrt(2). The capacitance...

    Text Solution

    |

  16. An L-C-R series circuit with 100Omega resistance is connected to an AC...

    Text Solution

    |

  17. A current of 4A flows in a coil when connected to a 12V DC source. If ...

    Text Solution

    |

  18. A capacitor C=2muF and an inductor with L = 10 H and coil resistance 5...

    Text Solution

    |

  19. Which of the following options are correct :

    Text Solution

    |