Home
Class 12
PHYSICS
Silver and copper voltmeters are connect...

Silver and copper voltmeters are connected in parallel with a battery of emf `12V`. In `30` minutes, `1g` of silver and `1.8g` of copper are liberated. The power supplied by the battery is
`(Z_(Cu) = 6.6xx10^(-4) g//C and Z_(Ag) = 11.2xx10^(-4)g//C`)

A

`24.13 J//sec`

B

`2.413 J//sec`

C

`0.2416 J//sec`

D

`2413 J//sec`

Text Solution

Verified by Experts

The correct Answer is:
A
Current (silver voltmeter)
`i_(1) = (m)/(Zt) = (1)/(11.2xx10^(-4)xx30xx60) = 0.496A`
Copper voltmeter
`i_(2) = (1.8)/(6.6xx10^(-4)xx30xx60) = 1.515A`
`I = i_(1) +i_(2) = 2.011 A`
`P = Vi = 12 xx 2.011 = 24.132 J//sec`.
Promotional Banner

Topper's Solved these Questions

  • THERMAL AND ELECTRIC EFFECT oF CURRENT

    CP SINGH|Exercise Exercises|101 Videos

  • SEMICONDUCTORS

    CP SINGH|Exercise Exercises|140 Videos

  • WAVE NATURE OF LIGHT

    CP SINGH|Exercise EXERCISES|140 Videos

Similar Questions

Explore conceptually related problems

A silver and copper voltameter are connected in parallel to a 12V battery of negligible resistance . In 30 minutes , 1.0 g of silver and 1.8 of copper are deposited . At what rate is the energy being delivered by the battery . The electrochemical equivalents of Ag and Cu are 11.2 xx 10^(-4) g C^(-1) and 6.6 xx 10^(-4) g C^(-1) , respectively .

A silver and copper voltameter are connected in series with 12 V battery of negligible resistance .It is found that 0.806 g of silver is deposited in half an hour ,. Find silver =1.12xx10^(-6) kgC ^(-1) and that of copper =6.6xx10^(-7) kg C ^(-1)

A silver and a copper voltameter are connected in series with a 12.0 V battery of negligible resistance. It is found that 0.806g of silver is deposited in half an hour.Find (a) the mass of the copper deposited and (b) the energy supplied by the battery. ECE of silver = 1.12 xx 10^(-6) kg C^(-1) and that of copper = 6.6 xx 10^(-7) kg C^(-1)

Asilver and a copper voltameter are connected in parallel across a 6 V battery of neglible internal resistance .In half , 1g of copper and 2 g of silver are deposited .Calculate the rate at which the energy is supplied and 2 g of silver are that ECE of Copper is 3294xx10^(-7) gC^(-1) and that of silver is 1118xx10^(-6) g C^(-1)

when a copper votameter is connected with a battery of emf 12V,2g of copper is deposite in 30 min. if the same voltmeter is connected across a 6V battery then the mass of copper deposite in 45 min would be

A copper voltameter and an ammeter are connected in series with a battery through a resistance In 50 minutes 0.99 g Copper is deposit on the plates the ammeter reasds 0.95 A Calculate the error inits reading ECE of copper is 0.0003g C^(-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

A silver and a copper voltameter are connected in series with a 12.0 V battery of negligible internal resistance . 0.806 g of silver is deposited in half an hour in the silver voltameter. Calculate (i) magnitude of current flowing in the cicuit (ii) mass of copper deposited in the copper voltameter during the same period. Given that ECE of silver 1.12xx10^(-8) kg C^(-1)

A copper voltameter is connected in series with a coil of resistance 100Omega . A steady current flowing in the circuit for 10 minutes, gives a deposit of 0.1 g of copper in the voltameter. Calculate the heat generated in the resistance coil. (ECE of Cu 3.3xx10^(-7)kg//C )

The symbol for 1xx10^(-6)g is

CP SINGH-THERMAL AND ELECTRIC EFFECT oF CURRENT-Exercises
  1. In a copper voltmeter, mass deposite in 30 seconds is 'm' gram. If the...

    Text Solution

    |

  2. In an electroplating experiment, m gram of silver is deposited when 4 ...

    Text Solution

    |

  3. Silver and copper voltmeters are connected in parallel with a battery ...

    Text Solution

    |

  4. Two voltameters, one of copper and another of silver, are joined in pa...

    Text Solution

    |

  5. The current flowing in a copper voltmeter is 1.6A. The number of Cu^(+...

    Text Solution

    |

  6. The charge on the capacitor is

    Text Solution

    |

  7. The charge on capacitor 4muF is

    Text Solution

    |

  8. The charge on capacitor is

    Text Solution

    |

  9. In the following diagram

    Text Solution

    |

  10. A part of a circuit in steady state along with the currents flowing in...

    Text Solution

    |

  11. In the diagram shown find the potential difference between the points ...

    Text Solution

    |

  12. Determine the current through the battery in the circuit shown in figu...

    Text Solution

    |

  13. The ratio of energy stored in capacitors C(1) and C(2)

    Text Solution

    |

  14. (a) Find potential difference between A and B and C. (b) Find po...

    Text Solution

    |

  15. In the circuit shown, the cell is ideal , with emf= 15 V. Ecah resista...

    Text Solution

    |

  16. In the circuit shown, the cell is ideal with emf = 2V . The resistance...

    Text Solution

    |

  17. A capacitor charges from a cell through a resistance. The time constan...

    Text Solution

    |

  18. A capacitor is charged and then made to discharged through a resistan...

    Text Solution

    |

  19. In the circuit shown in fig. when the switch is closed, the capacitor ...

    Text Solution

    |

  20. In the previous question, if the switch is opened after the capacitor ...

    Text Solution

    |