Question

Draw a schematic diagram of an electric circuit consisting of a battery

of five 2 V cells, a 20 Ω resistor, a 30 Ω resistor, a plug key, all connected

in series. Calculate the value of current flowing through the 20 Ω resistor

and the power consumed by the 30 Ωresistor.

Answer 1

current flowing through circuit is 0.5A

power consumed by 30ohm resistor is 5watt.