First slide

KVL

Question

In the circuit shown in fig. the potential difference
between points A and B will be

Moderate

A

(8/9) V
B

(4/3) v
C

(2/3) V
D

3/2 V

Solution

Current i through CBD = (2/15) amp
Current i through CAD = [2 / 15) amp
(V_C -V_B) = current x resistance
= (2 /15) x 10V
(V_C-V_A) = 2 /15) x 5V
or V_A-V_B = (V_C -V_B ) - (V_C -V_A)
= (2 / 15) [10 -5]= (2 / 3) V

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