Question

Identify the circuit (Figure 12.3) in which the electrical components have been properly connected

• A. (I)
• B. (II)
• C. (III)
• D. (IV)

Answer 1

The correct option is B (II)

Hint: Check the connections of the Voltmeter and Ammeter.

Step 1: Checking if the Voltmeter is connected in parallel and Ammeter is connected in series.

In circuits $\left(i\right)$ and $\left(iii\right)$, Voltmeter is connected in series. In circuit $\left(iii\right)$ the ammeter is connected in parallel. In circuits $\left(i\right)$ and $\left(iii\right)$, connections are not proper.
In circuits $\left(ii\right)$ and $\left(iv\right)$, the Voltmeter and Ammeter are connected in parallel and series respectively.

Step 2: Checking if the terminals are connected properly.

In circuit $\left(iv\right)$, the positive terminal of the ammeter is connected with the negative terminal of the cell. Hence it is not proper.

Whereas in circuit $\left(ii\right)$, all the terminals are properly connected. Therefore option $\left(B\right)$ is the correct option.