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

- 4.0A
- 36.0A
- 12.0A
- We cannot determine the current values without knowing the resistor values
- We cannot determine the current values without knowing the battery voltage

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Solution

Verified by Toppr

therefore equivalent resistance ,

1R′=1R+1R+1R ,

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 R1 ,

I1=V/R=4.0R/R=4.0A ,

since the resistors are equal therefore this will also be the current through R2 and R3 .

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