Home
Class 12
PHYSICS
What is constant in a battery (also call...

What is constant in a battery (also called a source of emf)?

A

current supplied by it

B

terminal potential difference

C

internal resistance

D

emf

Text Solution

Verified by Experts

The correct Answer is:
D
Promotional Banner

Topper's Solved these Questions

  • CURRENT ELECTRICITY

    NARAYNA|Exercise Level 1 C.W|64 Videos

  • CURRENT ELECTRICITY

    NARAYNA|Exercise Level 1 H.W|63 Videos

  • CURRENT ELECTRICITY

    NARAYNA|Exercise Level 6|43 Videos

  • COMMUNICATION SYSTEM

    NARAYNA|Exercise Level-II(H.W)|25 Videos

  • DUAL NATURE OF RADIATION AND MATTER

    NARAYNA|Exercise ASSERTION AND REASON|15 Videos

Similar Questions

Explore conceptually related problems

What are constant boiling mixture called?

The propagation constant of a wave is also calle its

Three equal resistors connected in series across a source of emf together dissipate 10W of power. What would be the power dissipated if te same resistors are connected in parallel across the same source of emf?

Is it possible that any battery has some constant valur of emf, but the potential difference between the plates is zero?

What is the process of melting also called

A voltmeter of range of 10 V and resistance 5000 Omega is connected in series with a battery and a resistor of 500Omega by mistake. If the voltmeter reading is 8V, what is the emf of the battery? (Neglect internal resistance of battery).

Three equal resistances connected is series across a source of e.m.f consume 20 watt. If the same resistor are connected in parallel across the same source of e.m.f., what would be the power dissipated ?

The universal gas constant (also called molar gas constant ) R is equivalent to

NARAYNA-CURRENT ELECTRICITY-C.U.Q
  1. When an electric cell drives current through load resistance, its back...

    Text Solution

    |

  2. The terminal voltage of a cell is greater tha its emf. When it is

    Text Solution

    |

  3. What is constant in a battery (also called a source of emf)?

    Text Solution

    |

  4. From the following the standard cell is

    Text Solution

    |

  5. A cell is to convert

    Text Solution

    |

  6. n identical calls, each of internal resistance (r) are first connected...

    Text Solution

    |

  7. The value of internal resistance of ideal cell is

    Text Solution

    |

  8. In a circuit two or more cells of the same emf are connected in parall...

    Text Solution

    |

  9. The resistance of an open circuit is

    Text Solution

    |

  10. According to Joule's law, if the potential difference across a conduct...

    Text Solution

    |

  11. Internal resistance of a cell depends on

    Text Solution

    |

  12. When cells are arranged in series

    Text Solution

    |

  13. To supply maximum current cells should be arrange in

    Text Solution

    |

  14. The terminal Pd of a cell is equal to its emf if

    Text Solution

    |

  15. The electric power transferred by a cell to an external resistance is ...

    Text Solution

    |

  16. Which depolarizers are used to neutralizes hydrogen layer in cells

    Text Solution

    |

  17. Assertion: Series combination of cells is used when their internal res...

    Text Solution

    |

  18. Assertion: To draw more current at low P.d, parallel connection of cel...

    Text Solution

    |

  19. Kirchoff's second law is based on the law of conservation of

    Text Solution

    |

  20. Kirchoff's second law is based on the law of conservation of

    Text Solution

    |