Physics
Choose the correct relation for e.m.f. (ε) and terminal voltage V:
- ε = V [always]
- V > ε [always]
- V < ε [when the cell is in use]
- None of these
Current Electricity
ICSE 2023
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Answer
V < ε [when the cell is in use]
Reason — When a cell is used to send current to an external circuit, it's terminal voltage V is less than it's e.m.f.
Hence, terminal voltage < e.m.f.
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