Question

The reading of the ideal ammeter will be (Resistance of ideal ammeters is zero)

• A. $\frac{5}{6}A$
• B. $\frac{6}{5}A$
• C. $\frac{3}{2}A$
• D. $\frac{2}{3}A$

Answer 1

Answer: (A)

Equivalent resistance for given circuit is given by, $R_{eq}=\left(\frac{6\times 3}{6+3}\right)+2=2+2=4\Omega$
Current from Battery, $I=\frac{V}{R_{eq}}=\frac{10}{4}=2.5A$ , where $V\&R_{eq}$ represents voltage and equivalent resistance of the circuit.

$I_1=2.5\times \frac{3}{3+6}=\frac{5}{6}A$