Question

What's the difference b/w potential difference and emf ?

Answer 1

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• What's the difference b/w Potential Difference and E.M.F ?

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$\small\underline{\overline{\mid{\red{\bold{E.M.F-}}\mid}}}$

1. ▣ It maintains potential difference .
2. ▣ E.M.F is the amount of energy supplied to the load by source line .
3. ▣ Symbolised by ' E ' .
4. ▣ Source is ' battery ' or ' dynamo ' .
5. ▣ It is independent of circuit resistance .
6. ▣ It remains constant .
7. ▣ It develops in open circuit .
8. ▣ It is a cause .

$\small\underline{\overline{\mid{\red{\bold{Potential \: Difference-}}\mid}}}$

1. ▣ It makes electron to flow .
2. Potential Difference is the amount of energy used by 1 coulomb of moving charge from one point to another .
3. ▣ Symbolised by ' V ' .
4. ▣ Source is ' battery ' only .
5. ▣ It dependent of circuit resistance .
6. ▣ It varies .
7. ▣ It develops in closed circuit .
8. ▣ It is an effect .

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You have to write only five differences b/w those .

Answer 2

Answer:

The potential difference is the measure of energy between any two points on the circuit. ... The EMF is the maximum voltage that the battery can deliver whereas the magnitude of the potential difference is always less than the maximum possible value of emf.