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A milliammeter of resistance 5 ohm gives...

A milliammeter of resistance 5 ohm gives a full scale deflection for a current of 15 mA. If the mulliammeter is to be used to measure current upto 1.5 A, then the resistance that must be attached to the milliammeter is

A

0.0505 `Omega`

B

0.505 `Omega`

C

5.05 `Omega`

D

505 `Omega`

Text Solution

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The correct Answer is:
A
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Knowledge Check

  • A galvanometer of resistance 15 ohm gives full scale deflection for a current of 2 mA. Calculate the shunt resistance needed to convert it into an ammeter of range 0 to 5 A

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    B
    `1.203ohm`
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    D
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    D
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  • A galvanometer of resistance 50Omega gives full scale deflection when a current 10^(-3)A is passed through it converted into an ammeter to measure 0.5A current.

    A
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