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Physics for IGCSE & O level - Electricity (Section 12 - No. 41)
In a circuit, if the current is 2 amps and the resistance is 4 ohms, what is the voltage?
0.5 Volts
2 Volts
6 Volts
8 Volts
Forklaring
Using Ohm's law (V=IR), 2A * 4 ohms = 8 Volts.
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