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If a 30 V, 90 W bulb is to be worked on ...

If a `30 V, 90 W` bulb is to be worked on a `120 V` line, resistance of how many ohms should be connected in series with the bulb

A

10 ohm

B

20 ohm

C

30 ohm

D

40 ohm

Text Solution

Verified by Experts

The correct Answer is:
C
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