If voltage is 240 V and current is 0.5 A, what is the resistance?

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Multiple Choice

If voltage is 240 V and current is 0.5 A, what is the resistance?

Ohm's law relates voltage, current, and resistance, and to find resistance you divide voltage by current. With a voltage of 240 volts and a current of 0.5 amperes, the resistance is R = V / I = 240 ÷ 0.5 = 480 ohms. This makes sense because a 480-ohm load at 240 V would draw I = V / R = 240 / 480 = 0.5 A. The other values would produce different currents (for example, 240 ohms would give 1 A, 120 ohms would give 2 A, and 60 ohms would give 4 A), so 480 ohms is the correct resistance for this scenario.

Ohm's law relates voltage, current, and resistance, and to find resistance you divide voltage by current. With a voltage of 240 volts and a current of 0.5 amperes, the resistance is R = V / I = 240 ÷ 0.5 = 480 ohms. This makes sense because a 480-ohm load at 240 V would draw I = V / R = 240 / 480 = 0.5 A. The other values would produce different currents (for example, 240 ohms would give 1 A, 120 ohms would give 2 A, and 60 ohms would give 4 A), so 480 ohms is the correct resistance for this scenario.

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