First slide

Ohm's law

Question

A current of 2 A flows in the circuit as shown. The potential difference $(V_{A} - V_{B})$ will be

Easy

A

+ 2 V
B

+ 1 V
C

$- 1 V$
D

$- 2 V$

Solution

Current through each arm DAC and DBC = 1A
$V_{D} - V_{A} = 2 and V_{D} - V_{A} = 3 \Rightarrow V_{A} - V_{B} = + 1 V$

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