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Q.
In the part of a circuit shown in figure, the potential difference between points $G$ and $H\left(V_{G}-V_{H}\right)$ will be
Current Electricity
Solution:
The current distribution in a circuit is as shown in the figure.
Let $V_{G}$ and $V_{H}$ be the potentials at points $G$ and $H$ respectively.
$\therefore V_{G}-(2\, A )(4\, \Omega)+3\, V -(2\, A )(2\, \Omega)+(2\, A )(1\, \Omega)=V_{H}$
$V_{G}-8\, V+3\, V-4\,V+2\, V=V_{H}$
$V_{G}-V_{H}=7\, V$
