Question

When a 4V battery is connected across an unknown resistor there is a current of 100 mA

in the circuit. The value of the resistance of the resister is:

i) 4 Ω

ii) 40 Ω

iii) 400 Ω

iv) 0.4 Ω. i have already ask this question at morning but its answer is wrong 0.4 tell me wright answer please​

Answer 1

Answer:

40 ohms.

Explanation:

V = 4 V

I = 100 mA = 100/1000 = 1/10 = 0.1 A

R = V/I = 4/0.1 = 4 * 10/1 = 40 ohm

Therefore, the resistance is 40 ohm.