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..​

Answer 1

Answer:

= 40 Ω. V=IR,  V = 4V, I = 100 mA = 0.1 A  

Hence R = V/I = 4/0.1 Ω = 40 Ω.

Answer 2

Answer:

R=40ohm

Explanation:

Given: v=4,I=100×10^-3A

R = v/I

R =4/100×10^-3

=(4×10^3)/100

=4000/100

R =40ohm