Home
Class 12
PHYSICS
In a copper voltmeter, mass deposite in ...

In a copper voltmeter, mass deposite in `30` seconds is `'m'` gram. If the time-current graph is as shown in figure. `ECE` of copper is

A

m/2

B

2m

C

0.5m

D

0.7m

Text Solution

Verified by Experts

The correct Answer is:
A
Promotional Banner

Topper's Solved these Questions

  • CURRENT AND RESISTANCE

    RESNICK AND HALLIDAY|Exercise Practice Questions (Linked Comprehension)|5 Videos
  • CURRENT AND RESISTANCE

    RESNICK AND HALLIDAY|Exercise Practice Questions (Matrix-Match)|9 Videos
  • CURRENT AND RESISTANCE

    RESNICK AND HALLIDAY|Exercise Problems|36 Videos
  • CIRCULAR MOTION

    RESNICK AND HALLIDAY|Exercise CHECK POINTS|6 Videos
  • ELASTICITY

    RESNICK AND HALLIDAY|Exercise PRACTICE QUESTIONS (Integer Type)|3 Videos

Similar Questions

Explore conceptually related problems

In a Cu - voltmeter, mass deposited in 30 s is m gm. If the time - current graph is shown in the following figure What is the electrochemical equivalent of Cu?

In a Cu-voltameter, mass deposited in 30s is 'm' g. If the time -current graph is shown in the following figure : What is the electrochemical equivalent of Cu ?

In a Cu-voltameter, mass deposited in 30s is m gm. If the time-current graph is shown in the following figure. What is the electrochemical equivalent of Cu?

The atomic weight of silver and copper are 108 and 64. A silver voltameter and a copper voltameter are connected in series and when current is passed 10.8 gm of silver is deposited. The mass of copper deposited will be

The chemical equivalent of copper and zinc are 32 and 108 respectively. When copper and silver voltameter are connected in series and electric current is passed through for sometimes, 1.6 g of copper is deposited. Then, the mass of silver deposited will be

A copper voltameter is connected in series with a tangent galvanometer of 10 turns and 5cm in radius. Calculate the weight of copper is deposited in 30 minutes if the deflection of the galvanometer is 60^(@) . (Horizontal component of earth's field =28A m^(-1)and "E.C.E of copper" =32.8 xx 10^(-8)kgC^(-1) .

When copper voltmeter is connected with a battery of emf 12 V, 2 g of copper is deposited in 30 min. If the same voltmeter is connected across a 6 V battery, then the mass of copper deposited in 45 min would be

RESNICK AND HALLIDAY-CURRENT AND RESISTANCE-Practice Questions (Single Corret Choice Type)
  1. A 5^(@)C rise in the temperature is observed in a conductor by passing...

    Text Solution

    |

  2. The masses of the three wires of copper are in the ratio 5:3:1 and the...

    Text Solution

    |

  3. In a copper voltmeter, mass deposite in 30 seconds is 'm' gram. If the...

    Text Solution

    |

  4. The resistivity of a wire

    Text Solution

    |

  5. When a current flows in a conductor, the order of magnitude of drift v...

    Text Solution

    |

  6. Assume that each atom of copper contributes one free electron. Density...

    Text Solution

    |

  7. In an electrical cable there is a single wire of radius 9 mm of copper...

    Text Solution

    |

  8. If n, e, tau, m, are representing electron density charge, relaxation ...

    Text Solution

    |

  9. In which one of the following situations does a conventional electric ...

    Text Solution

    |

  10. A conducting ring of radius R has charge Q distributed unevenly over i...

    Text Solution

    |

  11. A long conductor having charge q, with charge density lambda is moving...

    Text Solution

    |

  12. In an ionic solution, sodium ions (Na^(+)) are moving to the right and...

    Text Solution

    |

  13. When you flip a switch to turn on a light, the delay before the light ...

    Text Solution

    |

  14. The following ligure shows the cross section of a wire. Which of the f...

    Text Solution

    |

  15. A hollow copper tube of 5 m length has got external diameter equal to ...

    Text Solution

    |

  16. A copper wire is fabricated that has a gradually increasing diameter a...

    Text Solution

    |

  17. The magnitude of the electric field within a conducting wire depends o...

    Text Solution

    |

  18. Which one of the following statements concerning the electric field in...

    Text Solution

    |

  19. Wires A and B are identical except that each is made from a different ...

    Text Solution

    |

  20. A conductor of area of cross-section. A having charge carries, each ha...

    Text Solution

    |