Electronics Information第 89 / 120 题
If voltage is 12 volts and resistance is 4 ohms, what is the current?
a.3 amperes
b.2 amperes
c.4 amperes
d.48 amperes
解析
Using Ohm's law, current equals voltage divided by resistance. That is 12 volts divided by 4 ohms, which equals 3 amperes.
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