5 V Battery Is Connected To Two 20 Ohm Resistors Which Are Joined Together In Series

A 5 V battery is connected to two 20 ohm resistors which are joined together in series. Draw a circuit … . What is the p.d. across…

Answers:

b.   Effective resistance = 20 + 20 = 40 ohms

 c.   Current flowing through the circuit = I = V/R = 5/40 = 0.125 amps

 d   p.d. across each resistance = I x R = 0.125 x 20 = 2.5 V