Question

find equivalent resistance in series combination of resistance

Answer 1

Answer:R = R1 +R2 +R3......+Rn(n=number of resistors)

Explanation:

Answer 2

Series Combination

• The resistors are connected along the same line

• The current remains same throughout

Let there be two resistors with potential differences $V_1 \ and \ V_2$ respectively

The net potential difference would be

$V = V_1 + V_2$

From Ohm's Law,

V = IR

$\longrightarrow IR = IR_1 + IR_2 \\ \\ \longrightarrow IR = I(R_1 + R_2) \\ \\ \longrightarrow R = R_1 + R_2$

For 'n' number of resistors,

$R = R_1 + R_2 + \cdots + R_n$