Home
Class 12
PHYSICS
Two metallic wires of same material and ...

Two metallic wires of same material and same length have different diameters. When the wires are connected in parallel across an ideal battery the rate of heat produced in thinner wire is `Q_(1)` and that in thicker wire is `Q_(2)`. The correct statement is

A

`Q_(1)=Q_(2)`

B

`Q_(1)ltQ_(2)`

C

`Q_(1)gtQ_(2)`

D

it will depend on the emf of the battery

Text Solution

Verified by Experts

The correct Answer is:
B
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

Two metallic wires of same material and same length have different diameter. When the wires are connected in parallel across an ideal battery the rate of heat produced in thinner wire is Q_(1) and that in thicker wire is Q_(1) . The correct statements is

In the above question 73, when the wires are connected in parallel, the heat produced in thinner wire is H_(1) and that in thicker wire is H_(2). Which of the following is correct ?

There are two metallic wires of same material, same length but of different radii. When these are connected to an ideal bettery in series, heat produced is H_(1) but when connected in parallel, geat produced is H_(2) for the wsame time.Then the correct statement is

Two metallic wires of the same material and same length have different diameters. If we connect them in series across a battery, the heat produced is H _(1). If we connect them in parallel to the same battery the heat produced during the same time is H_(2). From the above, we infer that

Two wires 'A' and 'B' of the same material have their lengths in the ratio 1 : 2 and radii in the ratio 2 : 1 The two wires are connected in parallel across a battery. The ratio of the heat produced in 'A' to the heat produced in 'B' for the same time is

There are two wires of same material and same length while the diameter of second wire is 2 times the diameter of first wire, then ratio of extension produced in the wires by applying same load will be

There are two wires of same material and same length while the diameter of second wire is 2 times the diameter of first wire, then ratio of extension produced in the wires by applying same load will be

Two wires of the same material having lengths in the ratio 1 : 2 and diameters in the ratio 2 : 3 are connected in series with an accumulator. Compute the ratio of P.D. across the two wires.

NARAYNA-CURRENT ELECTRICITY-C.U.Q
  1. Figure 7.44 shows three similar lamps L(1) , L(2), and L(3) connectged...

    Text Solution

    |

  2. The potential difference across a conductor is doubled, the rate of ge...

    Text Solution

    |

  3. Two metallic wires of same material and same length have different dia...

    Text Solution

    |

  4. There are two metallic wires of same material, same length but of diff...

    Text Solution

    |

  5. Two electric bulbs rated P(1) watt and V volt, are connected in series...

    Text Solution

    |

  6. In above question, if the bulbs are connected in parallel, total power...

    Text Solution

    |

  7. Which of the following causes production of heat, when current is set ...

    Text Solution

    |

  8. A constant voltage is applied between the two ends of a metallic wire ...

    Text Solution

    |

  9. A resistor R(1) dissipates the power P when connected to a certain gen...

    Text Solution

    |

  10. Back emf of a cell is due to

    Text Solution

    |

  11. The direction of current in a cell is

    Text Solution

    |

  12. When an electric cell drives current through load resistance, its back...

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |

  15. From the following the standard cell is

    Text Solution

    |

  16. A cell is to convert

    Text Solution

    |

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

    Text Solution

    |

  18. The value of internal resistance of ideal cell is

    Text Solution

    |

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

    Text Solution

    |

  20. The resistance of an open circuit is

    Text Solution

    |