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A resistance R(1) is connected to a sour...

A resistance `R_(1)` is connected to a source of constant voltage . On connecting a resistance `R_(2)` in series with `R_(1)`

A

The total thermal power dissipated increases

B

Thermal power dissipated by `R_(1)` decreases

C

Thermal power dissipated by `R_(1)` increases

D

Total power dissipiated decreases

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(2, 4)
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