Question

Three identical resistors are connected in series to a 12-V battery. What is the voltage across any one of the resistors? 4V zero O 36 V 12 V 0 24 V

Answer 1

Note : In series current remain constant.

          In parallel voltge remain constant.

Given,

Three identical resistors connected in series, each with resistance R.

Connected to a battery of voltage, V = 12 V

Equivalence resistance, R_eq = R + R + R

R_eq = 3R

Current I = V/R_eq

I = 12/3R

I = 4/R

Voltage across each resistors, V' = IR

V' = (4/R)R

V' = 4 V

Answer : 4V

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