Rosemckinney2351
01.04.2020 •
Physics
How much current does a 310 W device draw when given a voltage of 120 V?
- 3.6•10^4 A
- 4.0•10^-2 A
- 4.2•10^2 A
- 2.6•10^0 A
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Ответ:
Explanation:
Power is expressed as rhe product of voltage and current hence P=IV where V is voltage across the circuit, I is current and P is power. Making current the subject of rhe formula then
Substituting 310 W for power and 120 V for voltage then
Giving the answer in scientific notation, then current is
Ответ:
In short, Your Answer would be Option C
Hope this helps!