Question

a battery of EMF 10 v and internal resistance 3 ohm is connected to a resistor. if the current in the circuit is 0.5 A, what is the resistance of the resistor?

Answer 1

here's ur answer
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Answer 2

$<B> Emf => Electro Motive Force$

We want to find the valus Of resistance of the resistor

$E = 10 V$

$r = 3 ohm$

$Current I = 0.5 A$

R = ?

Now writing the equation

V = E - ir

10 - 0.5 (3)

$V = 10 - 1.5$

$V = 8.5 V$

$Ohm's law$

It states that V α I

Ohm's law => V = IR

R = V/I

= 8.5 / 0.5

= 17 ohm

17 ohm is the resistance of the resistor