Physicshard · Past Paper
In a given circuit, if the voltage is tripled and resistance is doubled, the current will change by a factor of:
A6
B1.5
C0.66
D5
✓ Correct Answer: B — 1.5
I_new = V_new / R_new = (3V) / (2R) = 1.5 * (V/R) = 1.5 * I_old.
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