Question

Please help asap

Answer 1

Expense of running an electric appliance for 2 hours is 1.32 $.

Explanation:

Power is defined as the energy consumed or converted or heat transferred per unit time. Its actually equationally described as energy divided by the time.

In the question, the appliance is consuming electricity at 110 volts and 30 amps.

So the power consumed in 1 hour = $110 \times 30$  = 3300 watts.

So the energy consumed in 2 hours = $3300 watts \times 2 hours$ = 6600 watt hours. =6.6 kilowatt hours.

So expense at the rate of 0.2 $ per hour = $6.6 \times 0.2$ $ = 1.32 $.