Question

How much power is produced by a flashlight that has a voltage of 12 volts and a current of 6.5 × 10-2 amps? 0.78 watts 78 watts 190 watts 0.0054 watts 1.9 watts

Answer 1

As per the question we are asked to calculate the average power produced by flashlight.

It is given that the voltage [V] = 12 volts.

The current flowing through the circuit  [I]  $= 6.5*10^-2\ ampere$

The power consumed in an electrical circuit is the product of voltage and current flowing through that circuit. Mathematically it can be written as -

                    power = voltage×current

                      i.e P = VI                           [here p is the power]

Putting the values of V and I the power is calculated to be-

                                                           $P = VI$

                                                                  $= 12 volt*6.5*10^-2\ ampere$

                                                                  $=0.78 watt$

Here watt is the unit of electric power.