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

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]  

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-

Here watt is the unit of electric power.

the answer would be a

when a device is used in a circuit in which the voltage is 81 v, the current flowing through the device is 3 a. what is the resistance of the device?

a. 27 ω

b. 40.5 a

c. 243 ω

d. 243 a

the correct answer is a. 27