A resistor of resistance value equal to 4 kilo ohm is placed in a circuit and a current of 3 A flows through it. What is the voltage accross the resisitor?
12000 V
We know that ,
By Ohm's law : V = IR
Given that : I = 3 A , R = 4000 ohm
So, V = 3 X 4000 = 12000 V