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Current Electricity — Physics STD 10 — Question

ICSE BoardEnglish MediumSTD 10PhysicsCurrent Electricity2 Marks
Question
A cell is used to send current to an external circuit. (a) How does the voltage across its terminals compare with its e.m.f? (b) under what condition is the e.m.f of a cell equal to its terminal
voltage?
✓

Answer

(a) Terminal voltage is less than the emf : Terminal Voltage < e.m.f.
(b) e.m.f. is equal to the terminal voltage when no current is drawn.

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