Question

The emf of a battery is E = 20 V . When the

battery delivers a current of 0.2 A to a load,
the potential difference between the terminals
of the battery is 18 V volts.
Find the internal resistance of the battery.
Answer in units of Ω.

Answer 1

10 ohms

Step-by-step explanation:

V = IR

2 v is the drop in the battery

2 = .2 R

R = 10 ohms