Question

When a 12 V battery is connected to a resistor,2.5 mA current flows through the circuit. Of so what is the resistance of the resistor

Answer 1

Answer:

4.8×10^3

Explanation:

simple formula v=ir

don't forget to change unit of current

Answer 2

Answer :-

$R = 4800 \Omega$

Given :-

V = 12 v

I = 2.5 × 10-³ A

To find :-

The resistance of the resistor.

Solution:-

Let the resistance of the resistor be R.

Resistance → The property of a substance to resist the flow of electric current through itself is called resistance.

By Ohm's law:-

$\huge \boxed{R = \dfrac{V}{I}}$

Put the given value ,

→$R = \dfrac{12}{2.5 \times 10^{-3}}$

→$R = \dfrac{12}{25 \times 10^{-4}}$

→$R = \dfrac{12 \times 10^4}{25}$

→$R = 0.48 \times 10^4$

→$R = 4800 \Omega$

hence,

The resistance of the resistor is 4800 $\Omega$.