MCQ
The reading of the ammeter as per figure shown is
- A$\frac{1}{8}\,A$
- ✓$\frac{3}{4}\,A$
- C$\frac{1}{2}\,A$
- D$2\, A$
✓
Answer
Correct option: B.
$\frac{3}{4}\,A$
b
Resistance across $XY$ $ = \frac{2}{3}\,\Omega $
Resistance across $XY$ $ = \frac{2}{3}\,\Omega $
Total resistance
$ = 2 + \frac{2}{3} = \frac{8}{3}\,\Omega $
Current through ammeter
$ = \frac{2}{{8/3}} = \frac{6}{8} = \frac{3}{4}\,A$
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