Home
Class 12
PHYSICS
The AC voltage across a resistance can b...

The AC voltage across a resistance can be measured using

A

a potentiometer

B

a hot - wire voltmeter

C

am moving- coil galvanometer

D

a moving - magnet galvanometer

Text Solution

Verified by Experts

The correct Answer is:
B
Promotional Banner

Topper's Solved these Questions

  • ALTERNATING CURRENT

    CP SINGH|Exercise EXERCISES|84 Videos

  • BOHR THEORY

    CP SINGH|Exercise Exercises|80 Videos

Similar Questions

Explore conceptually related problems

Statement-1: Peak voltage across the resistance can be greater than the peak voltage of the source in an series LCR circuit. Statement-2: Peak voltage across the inductor can be greater than the peak voltage of the source in an series LCR circuit.

In a series resonant circuit, the AC voltage across resistance R , inductance L , and capacitance C are 5V,10V and 10V respectively. The AC voltage applied to the circuit will be

In a series LCR circuit, the voltage across the resistance, capacitance and inductance is 10 V each. If the capacitance is short circuited the voltage across the inductance will be

In a series LCR circuit, the voltage across the resistance, capactiance and inductance is 10 V each. If the capacitance is short circuited, the voltage across the inductance will be

Two voltmeters A and B are used to measures a voltage a cross a resistance. Several readings are taken and represented in the following graphs. Here V_(T) is the true value of the voltage being measured. Which of the following statements is//are correct?

In a series L-C-R circuit the voltage across resistance , capacitance and inductance is 10 V each. If the capacitance is short circuited, the voltage across the inductance will be

In a series LCR the voltage across resistance, capacitance and inductance is 10V each. If the capacitance is shor t circulated, the voltage across the inducatance will be

In the a.c. circuit shown in fig, the main supply hs constant voltage but variable frequency. For what frequency will the voltage across the resistance R be maximum ?

In a series resonant circuit, the ac, voltage across resistance R, inductance L and capacitance Care 5V, 10V and 10V, respectively. The ac. voltage applied to the circuit will be

CP SINGH-ALTERNATING CURRENT-EXERCISES
  1. A choke coil has.

    Text Solution

    |

  2. A choke coil is preferred to a resistance for reducing current in an a...

    Text Solution

    |

  3. An electric lamp which runs at 80 volt d.c. and consumes 10 ampere is ...

    Text Solution

    |

  4. In the circuit shown, R is a pure resistor, L is an inductor of neglig...

    Text Solution

    |

  5. A capacitor and an inductor are connected in parallel across an ac sou...

    Text Solution

    |

  6. In the given circuit the current drawn from the source is .

    Text Solution

    |

  7. An inductor of 10mH an a capacitor of 16mF are connected in the circui...

    Text Solution

    |

  8. The AC voltage across a resistance can be measured using

    Text Solution

    |

  9. Alternating current can be measured by

    Text Solution

    |

  10. Hot wire ammeters can be used for measuring

    Text Solution

    |

  11. In the given circuit, the AC source has (omega) = 100 rad//s. Consider...

    Text Solution

    |

  12. In a dc motor if E is the applied emf and e is the back emf then the e...

    Text Solution

    |

  13. Armature current in dc motor will be maximum when

    Text Solution

    |

  14. The armature of a dc motor has 20 Omega resistance It draws a currrent...

    Text Solution

    |

  15. In a step - down transformer the input voltage is 22kV and the output ...

    Text Solution

    |

  16. An ideal transformer is used to step up an alternating emf of 220V to ...

    Text Solution

    |

  17. in a transformer the number of rurns in the primary and secondary coil...

    Text Solution

    |

  18. in a step-up transformer, the turn ratio is 1:2 leclanche cell (e.m.f....

    Text Solution

    |

  19. Eddy currents are produced in a matterial when it is

    Text Solution

    |

  20. The core of any transformaer is laminated so as to

    Text Solution

    |