A current of 5mA is passed through a colour coded carbon resistor with first, second and third rings of black, brown and red. What is the voltage drop across the resistor ?

Explanation

`I = 5mA = 5 xx 10^(-3)A` , resistance of carbon resistor `R = 01 xx 10^(2)xx 100 Omega`
voltage `V = IR = 5 xx 10^(-3) xx 100 = 0.5V`