Question

The reading on the ammeter is $12.0A$. How much current flows in each resistor?

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Updated on : 2022-09-05

Solution

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Correct option is A)

therefore equivalent resistance ,

$R_{′}1 =R1 +R1 +R1 $ ,

or $R_{′}=R/3$ ,

given total current in the circuit $I=12.0A$ ,

therefore voltage $V=IR_{′}=12.0×(R/3)=4.0R$ ,

as the resistors are in parallel combination so voltage across them will be same that is $V=IR$ ,

now current through $R_{1}$ ,

$I_{1}=V/R=4.0R/R=4.0A$ ,

since the resistors are equal therefore this will also be the current through $R_{2}$ and $R_{3}$ .

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