Inside a cell, negative charge is moved back to the negative terminal. The source acts as a:
ACharge pump
BCharge brake
CCharge mirror
DCharge magnet
Answer & Solution
Correct answer: A. Charge pump
1. The potential difference must be kept up.
2. Charge has to be driven back against the field.
3. So the source acts as a charge pump.
_Source: OpenStax University Physics Volume 2, Chapter 10, Direct-Current Circuits._
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