Electrical (A6)第 80 / 120 题
A circuit has 12 volts applied and draws 2 amps. Its total resistance is:
a.24 ohms
b.6 ohms
c.2 ohms
d.0.17 ohms
解析
By Ohm's law, resistance equals voltage divided by current, so 12 volts divided by 2 amps equals 6 ohms. Rearranging Ohm's law lets a technician solve for any unknown value. Verifying calculated resistance against measured values helps confirm circuit condition.
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