Question

Give me the relation between Potential difference V and E.M.F E​

Answer 1

${\bold{\underline{Hey \:Mate}}}$

Here's the Answer ❗

${\boxed{\bold{Relationship\:Between\:E\:and\:V}}}$

=>When our electric circuit is open , there's no current flowing in it. Here we use the Ohm's Law that says that

V = IR

I = $\frac{V}{R}$

I = $\frac{E}{R}$

I = $\frac{E}{r+ R}$

I ( r + R ) = E

Ir + IR = E

Ir + V = E

${\boxed{V = E - Ir }}$

${\bold{\underline{\underline{Hope \:Helps!}}}}$

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Answer 2

Answer:

V = E - Ir

V is potential diff.

E is EMF.

I is current

r is internal resistance