Statement: In any circuit, current is inversely proportional to:
- Both of these
- None of these
Correct answer: Voltage
From mathematical formula V = IR:
Current = Voltage / Resistance
Let’s consider voltage is constant having value 20 V.
Now for the resistance of 10 ohms
Current = 20 V / 10 ohms = 2 A … (1)
Let’s now increase the resistance to 30 ohms
Current = 20 V / 30 ohms = 0.66 A … (2)
Comparing both equations we observe the higher value of resistance lowers the electric current through a circuit.