In the same battery setup, with two 12-ohm lamps in parallel, what is the current through each lamp?

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Multiple Choice

In the same battery setup, with two 12-ohm lamps in parallel, what is the current through each lamp?

In a parallel circuit, each branch has the full supply voltage across it, so the current through a resistor is I = V/R. Since both lamps are 12 ohms and receive the same voltage, each lamp draws the same current of V/12. If the supply is 5 volts, that becomes 5/12 ≈ 0.417 amps per lamp. The total current drawn from the battery would then be twice that, about 0.834 amps. So the current through each lamp is 0.417 amps.

In a parallel circuit, each branch has the full supply voltage across it, so the current through a resistor is I = V/R. Since both lamps are 12 ohms and receive the same voltage, each lamp draws the same current of V/12. If the supply is 5 volts, that becomes 5/12 ≈ 0.417 amps per lamp. The total current drawn from the battery would then be twice that, about 0.834 amps. So the current through each lamp is 0.417 amps.

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