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The emf of a battery A is balanced by a ...

The emf of a battery A is balanced by a length of 80cm on a potentio meter wire. The emf of a standard cell 1v is balanced by 50cm. The emf of A is

A

2v

B

1.4v

C

1.5v

D

1.6v

Text Solution

Verified by Experts

The correct Answer is:
D
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Knowledge Check

  • The emf of a battery A is balanced by a length of 80cm on a potentiometer wire. The emf of a standard cell lv is balanced by 50cm. The eml of A is

    A
    2v
    B
    1.4v
    C
    1.5v
    D
    1.6v

  • 1 ohm resistance is in series with an Ammeter which is balanced by 75cm of potentiometer wire. A standard cell of 1.02V is balanced by 50cm. The Ammeter shows a reading of 1.5A.The error in the Ammeter reading is

    A
    `0.002 A`
    B
    `0.03 A`
    C
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    D
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  • 1 ohm resistance is in series with an Ammeter which is balanced by 75cm of potentiometer wire. A standard cell of 1.02V is balanced by 50cm. The Ammeter shows a reading of 1.5A. The error in the Ammeter reading is

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