Home
Class 12
PHYSICS
Consider the following two statements A ...

Consider the following two statements `A` and `B` and identify the correct answer.
(A) In a transformer a large alternating current at low voltage can be transformed into a small alternating current at high voltage
(B) Energy in current carrying coil is stored in the form of magnetic field.

Promotional Banner

Topper's Solved these Questions

  • ALTERNATING CURRENT

    NARAYNA|Exercise Assertion & Reason|14 Videos

  • ALTERNATING CURRENT

    NARAYNA|Exercise LEVEL - I (C.W)|23 Videos

  • ALTERNATING CURRENT

    NARAYNA|Exercise LEVEL - II(H.W)|13 Videos

  • ATOMIC PHYSICS

    NARAYNA|Exercise LEVEL-II (H.W)|14 Videos

Similar Questions

Explore conceptually related problems

Which one of the following devices changes low voltage alternating current to high voltage alternating current and vice versa?

Consider the following two statements A and B and identify the correct choice given in the answers (A) Duddells thermo-galvanometer is suitable to measure direct current only (B) Thermopile can measure temperature differences of the order of 10^(-3).^(@)C

A 100mH coil carries a current of 1 ampere. Energy stored in its magnetic field is

What happens to the AC current in a transformer if alternating voltage is increased to n times ?

A 200 mH coil carries a current of 1A. The energy stored in its magnetic field is

Statement (A) : Step up transformer converts low voltage, high current to high voltage, low current Statement (B) : Transformer works on both ac and dc.

NARAYNA-ALTERNATING CURRENT-C.U.Q
  1. Consider the following two statements A and B and identify the correct...

    Text Solution

    |

  2. In an ac circuit the current

    Text Solution

    |

  3. The average emf during the positive half cycle of an ac supply of peak...

    Text Solution

    |

  4. Alternating current is transmitted to distant places at

    Text Solution

    |

  5. In case of a.c circuit, Ohm's law holds good for {:a) Peak values of...

    Text Solution

    |

  6. In case of AC circuits the relation V = iZ, where Z is impedance, can ...

    Text Solution

    |

  7. Alternating current can not be measured by D.C. Ammeter because

    Text Solution

    |

  8. The r.m.s value of Potential due to superposition of given two alterna...

    Text Solution

    |

  9. If the instantaneous current in a circuit is given by i=2cos (omegat-p...

    Text Solution

    |

  10. If a capacitor is connected to two different A.C generators, then the ...

    Text Solution

    |

  11. In general in an alternating current circuit

    Text Solution

    |

  12. The magnitude inducted e.m.f. in an LR circuit at brea of circuit as c...

    Text Solution

    |

  13. The emf and current in a circuit are such that E = E(0) sin omega t an...

    Text Solution

    |

  14. The correct variation of resistance R with frequency f is given by

    Text Solution

    |

  15. Same current is flowing in two alternating circuits. The first circuit...

    Text Solution

    |

  16. When an a.c source is connected across a resistor

    Text Solution

    |

  17. The phase angle between current and voltage in a purely inductive circ...

    Text Solution

    |

  18. Ratio of impedence to capactive reactance has

    Text Solution

    |

  19. An inductor-coil having some resistance is connected to an AC source. ...

    Text Solution

    |

  20. Why the current does not rise immediately in a circuit containing indu...

    Text Solution

    |

  21. In an AC circuit containing only capacitance the current

    Text Solution

    |