a 10v fan with a current of 2a is turned on for 30 seconds. calculate the energy transferred in joules.
a 10v fan with a current of 2a is turned on for 30 seconds. calculate the energy transferred in joules.
Answer: The energy transferred in joules can be calculated using the formula:
Energy = Power x Time
We know that the fan has a voltage of 10V and a current of 2A, so the power can be calculated as:
Power = Voltage x Current
Power = 10V x 2A
Power = 20W
The fan was turned on for 30 seconds, so the time (t) is 30 seconds.
Therefore, the energy transferred in joules can be calculated as:
Energy = Power x Time
Energy = 20W x 30s
Energy = 600 Joules
So the energy transferred by the fan in 30 seconds is 600 Joules.