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The resistance of a bulb filmanet is 100...

The resistance of a bulb filmanet is `100Omega` at a temperature of `100^@C.` If its temperature coefficient of resistance be` 0.005 per .^@C,` its resistance will become `200 Omega` at a temperature of

A

`500^@C`

B

`200^@C`

C

`300^@C`

D

`400^@C`

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