alleryInternal resistance of a cell may be neglected when it is:
AMuch bigger
BExactly equal
CAlways zero
DMuch smaller
Answer & Solution
Correct answer: D. Much smaller
1. The internal resistance sits in series with the circuit.
2. Its effect matters only in proportion to the rest.
3. It may be neglected when it is much smaller than the external one.
4. So the answer is much smaller.
_Source: syllabus Physics, Ch 3 'Current Electricity'_
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