The formula for electrical power is where V is voltage, W is wattage and A is amperage. Find the voltage to the nearest hundredth needed for a circuit of 400 W with a current of 4.1 A.
$$\mathrm { V } = \frac { \mathrm { W } } { \mathrm { A } }$$
A)0.01025 volts
B)1,640 volts
C)97.56 volts
D)395.9 volts

Question

Quizplus · Accepted Answer

Plugging in the values given in the formula: 
$$\mathrm { V } = \frac { \mathrm { W } } { \mathrm { A } } = \frac { 400\ W } { 4.1\ A } = 97.56\ V$$ 
Rounding to the nearest hundredth, the answer is 97.56 volts, which is choice C.

The Formula for Electrical Power Is Where V Is Voltage V=WA\mathrm { V } = \frac { \mathrm { W } } { \mathrm { A } }V=AW​

The Formula for Electrical Power Is Where V Is Voltage $\mathrm { V } = \frac { \mathrm { W } } { \mathrm { A } }$