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A 1,200-watt water heater is plugged into a 120-volt outlet and used for 1.5 hours. How much current runs through the vacuum? 0.10 amps 10 amps 80 amps 180 amps
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3 votes
A 1,200-watt water heater is plugged into a 120-volt outlet and used for 1.5 hours. How much current runs through the vacuum?

0.10 amps
10 amps
80 amps
180 amps

User Viktor Be
by
8.2k points

2 Answers

5 votes
1200 watts / 120 volts =10 amps begins to flow as soon as you plug it in.
User Burito
by
8.1k points
5 votes
Power = (voltage) x (current)

(1,200 W) = (120 V) x (current)

Current = (1,200 watt) / (120 volt) = 10 Amperes.

How long the heater heats is irrelevant. The current
is flowing all the time, whenever the heater is running.
User Kieran Andrews
by
8.1k points
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