Home
Class 12
PHYSICS
Usually in A.C. circuit …….....

Usually in A.C. circuit ……..

A

average current is zero.

B

average square of current is zero.

C

dissipiation of average power is zero

D

phase difference between voltage and current is zero.

Text Solution

Verified by Experts

The correct Answer is:
A
Promotional Banner

Topper's Solved these Questions

  • ALTERNATING CURRENTS

    KUMAR PRAKASHAN|Exercise SECTION-D MCQs (COMPETITIVE EXAMS)|64 Videos

  • ALTERNATING CURRENTS

    KUMAR PRAKASHAN|Exercise SECTION-C NCERT EXEMPLAR (Long Answer)|5 Videos

  • ATOMS

    KUMAR PRAKASHAN|Exercise Section-D -MCQs asked in GUJCET / Board Exam|34 Videos

Similar Questions

Explore conceptually related problems

Calculate the resultant inductance of two inductor L_(1) and L_(2) when they are connected in parallel in A.C. circuit.

What is the average power dissipation in an ideal capacitor in A.C. circuit ?

Which physical quantity is there in A.C. circuit as displacement variable?

A lamp consumes only 50% of maximum power applied in an A.C. circuit. What will be the phase difference between applied voltage and circuit current ?

The instantaneous value of current in an A.C. circuit is I=2sin(100pit+pi/3)A . The current will be maximum for the first time at ……..

If in an A.C. circuit voltage V and current is then the power dissipated in the circuit is …….

The phase difference between current and voltage for L-C-R A.C. series circuit is …….

KUMAR PRAKASHAN-ALTERNATING CURRENTS -SECTION-D MCQs (DARPAN BASED ON TEXTBOOK)
  1. In an A.C. circuit, resistance = 12Omega and capacitance reactance = 9...

    Text Solution

    |

  2. I"rms"= Im

    Text Solution

    |

  3. Usually in A.C. circuit ……..

    Text Solution

    |

  4. The force constant of a spring corresponds to …….. in electrical circu...

    Text Solution

    |

  5. A pure capacitor of capacitive reactance of 10Omega is connected to an...

    Text Solution

    |

  6. An L-C-R series circuit with inductor of reactance is 25 Omega, reacta...

    Text Solution

    |

  7. If 1.5 A constant current is passing through a resistance, then the va...

    Text Solution

    |

  8. An L-C-R series A.C. circuit is tuned to resonance. The impedance of t...

    Text Solution

    |

  9. In an L-C-R circuit, L = 8H, C = 0.5muF, R = 100Omega connected in ser...

    Text Solution

    |

  10. In a L-C oscillator circuit at any instant of time current is I and ch...

    Text Solution

    |

  11. …….. does not change with time for D.C. current and D.C. voltage.

    Text Solution

    |

  12. An instantaneous current at any instant in an A.C. series circuit is z...

    Text Solution

    |

  13. An a.c. source is rated at 220 V - 50 Hz. The time taken for voltage t...

    Text Solution

    |

  14. The instantaneous value of current in an A.C. circuit is I=2sin(100pit...

    Text Solution

    |

  15. L, C and R represent physical quantities inductance, capacitance and r...

    Text Solution

    |

  16. An emf E = 4 cos (1000t) volt is applied to an LR circuit of inductanc...

    Text Solution

    |

  17. A coil of inductance L has an inductive reactance of XL in an A.C. cir...

    Text Solution

    |

  18. If 8Omega resistance and 6Omega reactance are present in an A.C. serie...

    Text Solution

    |

  19. Two identical incandescent light bulbs are connected as shown in figur...

    Text Solution

    |

  20. A 220 V, 50 Hz a.c. source is connected an inductance of 0.2 H and a r...

    Text Solution

    |