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A galvonometer of resistance 20 Omega g...

A galvonometer of resistance `20 Omega` gives a full scale deflection with a current of 0.04A is passed through it. It is derised to convert it into an ammeter of range 20A . The only shunt available is `0.05 Omega` . The resistance that must be converted in series with the coil of the galvonometer is

A

4.95 `Omega`

B

`5.94 Omega `

C

`9.45 Omega`

D

`12.62 Omega`

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The correct Answer is:
A
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