MCQ
In the electric network shown, when no current flows through the $4\, \Omega $ resistor in the arm $EB$, the potential difference between the points $A$ and $D$ will be ............... $V$
- A$6$
- B$3$
- ✓$5$
- D$4$
✓
Answer
Correct option: C.
$5$
c
As no current flows through arm $E B$ then
As no current flows through arm $E B$ then
$\mathrm{V}_{\mathrm{D}}=0\, \mathrm{V}$
$\mathrm{V}_{\mathrm{E}}=0\, \mathrm{V}$
$\mathrm{v}_{\mathrm{B}}=-4 \,\mathrm{V}$
$\mathrm{V}_{\mathrm{A}}=5 \,\mathrm{V}$
So, potential difference between the points
$A$ and $D$
$V_{A}-V_{D}=5\, \mathrm{V}$
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