Question

If there are 3 Resistors R1, R2 and R3 in series and V is total voltage and I is total current    then Voltage across R2 is

(a) V R3/ R1 + R2 + R3

(b) V R2/ R1 + R2 + R3

(c) V R1/R1 + R2 + R3

(d) V

I have been asked this question in an interview for internship.

My question is taken from The Voltage Divider and Current Divider Circuits in section Simple Resistive Circuits of Electric Circuits

Answer 1

Right choice is (b) V R2/ R1 + R2 + R3

To explain: V2 =I R2

       = V R2/ R1 + R2 + R3.