Home
Class 12
PHYSICS
A source which gives constant potential ...

A source which gives constant potential difference and hence flow of charge is

A

source of e.m.f.

B

source of light

C

source of heat

D

none of these

Text Solution

Verified by Experts

The correct Answer is:
A
Promotional Banner

Topper's Solved these Questions

  • CURRENT ELECTRICITY

    NIKITA PUBLICATION|Exercise Multiple Choice Questions|314 Videos

  • COMMUNICATION SYSTEMS

    NIKITA PUBLICATION|Exercise Multiple Choice Questions (Examples for Practice)|8 Videos

  • ELASTICITY

    NIKITA PUBLICATION|Exercise MCQ|314 Videos

Similar Questions

Explore conceptually related problems

A source of constant potential difference is connected across a conductor having irregular cross section as shown.

A parallel plate air-core capacitro is connected across a source of constant potential difference. When a dielectirc plate is introudced between the two plates then:

A dielectric is introduced between the elements of the condenser kept at a constant potential difference, then the charge on condenser

Find the potential difference and charge on each capacitor.

A parallel plate condenser has conducting plates of radius 12 cm separated by a distance of 5mm. It is charged with a constant charging current of 0.16 A, the rate at which the potential difference between the plate change is

Equipotential spheres are drawn round a point charge. As we move away from charge will the spacing between two spheres having a constant potential difference decrease, increase or remain constant.

(a) Name a device which helps to maintain potential difference across a conductor (say, a bulb). (b) If a potential difference of 10V causes a current of 2A to flow for 1 minute, how much energy is transferred?

The space between the rectangular plates (with sides a and b ) of a parallel-plato capacitor (the distance between the plates is l) is filled with a solid dielectric whose dielectric constant is c. The capacitor is charged to a certain potential difference and disconnected from the voltage source. After that the dielectric is slowly moved out of the capacitor, which lTIOanS that the section x not filled with the dielectric gradually increases in size. How wi ll the potential difference between the plates and the surface charge densities on both parts of the capacitor (with and without the dielectric) change in the process?

A capacitor only is connected to an AC source. What will be the phase difference between the current flowing in the circuit and the potential difference between the plates of the capacitor?

NIKITA PUBLICATION-CURRENT ELECTRICITY-Multiple Choice Questions
  1. Resistance of a conductor increases with the rise of temperature, beca...

    Text Solution

    |

  2. A current of 5 ampere is passing through a metallic wire of cross-sect...

    Text Solution

    |

  3. A source which gives constant potential difference and hence flow of c...

    Text Solution

    |

  4. The energy spent by the cell in circulating unit charge once through t...

    Text Solution

    |

  5. The potential difference across the terminals of the cell in open circ...

    Text Solution

    |

  6. The e.m.f. of a cell is always

    Text Solution

    |

  7. In S.I. system, unit of electromotive force of a cell is

    Text Solution

    |

  8. The e.m.f. of a cell is independent of

    Text Solution

    |

  9. The e.m.f. of a cell depends on

    Text Solution

    |

  10. What determines the e.m.f. between the two metals placed in an eletrol...

    Text Solution

    |

  11. The e.m.f. of a cell is a

    Text Solution

    |

  12. The amount of work done by the cell in sending a unit charge once thro...

    Text Solution

    |

  13. As the current drawn from the cell increases, terminal potential diffe...

    Text Solution

    |

  14. The resistance offered by electrolytic solution of a cell is

    Text Solution

    |

  15. The value of internal resistance of ideal cell is

    Text Solution

    |

  16. Internal resistance of a cell depends on

    Text Solution

    |

  17. A device which converts chemical energy into electrical energy is call...

    Text Solution

    |

  18. An arrangement, in which chemical reaction can be proceeded at a stead...

    Text Solution

    |

  19. The electric cell is a device to obtain electric energy from

    Text Solution

    |

  20. Within the electric cell, the charge is transported by

    Text Solution

    |