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Found in: Page 771

### College Physics (Urone)

Book edition 1st Edition
Author(s) Paul Peter Urone
Pages 1272 pages
ISBN 9781938168000

# Explain which battery is doing the charging and which is being charged in Figure 21.45.

$\mathrm{E}1$is charged,$\mathrm{E}2$ is doing the charging.

See the step by step solution

## Step 1: How to know which battery is getting charged

When two batteries are connected then the battery with higher potential is responsible for charging another battery.

## Step 2: Obtaining which battery is getting charged by which one.

The battery $\mathrm{E}1$is getting charged whereas $\mathrm{E}2$ is doing the charging as $\mathrm{E}2$ is at the higher voltage. Net effective voltage is 6 volts.

Hence, $\mathrm{E}1$is charged, $\mathrm{E}2$ is doing the charging.