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A 50V battery is connected across a 10 o...

A `50V` battery is connected across a 10 ohm resistor. The current is `4.5` amperes. The internal resistance of the battery is

A

`10Omega`

B

`0.5Omega`

C

`1.1Omega`

D

`5Omega`

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Knowledge Check

  • When a battery connected across a resistor of 16 ohm , the voltage across the resistor is 12V. When the same battery is connected across a resistor of 10 ohm , voltage across it is 11V. The internal resistance of the battery in ohm is

    A
    `10/7`
    B
    `20/7`
    C
    `25/7`
    D
    `30/7`

  • When a battery connected across a resistor of 16Omega the voltage across the resistor is 12 V. When the same battery is connected across a resistor of 10Omega voltage. Across it is 11 V. The internal resistance of the battery in ohms is

    A
    `(10)/(7)`
    B
    `(20)/(7)`
    C
    `(25)/(7)`
    D
    `(30)/(7)`

  • When a battery connected across a resistor of 16 Omega , voltage across the resistor is 12V. When the same battery is connected across a resistor of 10 Omega , voltage across it is 11 V. The internal resistance of the battery (in ohm) is

    A
    `10/7`
    B
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    C
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    D
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