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A wire when connected to 220 V mains sup...

A wire when connected to 220 V mains supply has power dissipation `P_1`. Now the wire is cut into two equal pieces which are connected in parallel to the same supply. Power dissipation in this case is `P_2.` Then` P_2: P_1 `is

A

1

B

4

C

2

D

3

Text Solution

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MODERN PUBLICATION-TEXTUAL QUESTIONS-EXERCISE
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  2. If in the circuit, power dissipation is 150 W, then R is

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  3. A wire when connected to 220 V mains supply has power dissipation P1. ...

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