Question

The values of resistances marked on the coils R₁ and R₂ are found to be correct. A student connects the given resistors in the following manner (as shown in Figure 1).



He then connects the terminals marked X and Y of the above combination of resistors R₁ and R₂ to the terminals marked X and Y in the circuit (shown in Figure 2).



The average value of the ratio V/I in the observations recorded in the circuit would be:
(1) 9 Ω
(2) 6 Ω
(3) 3 Ω
(4) 2 Ω

Answer 1

According to Ohm's law, the ratio $\frac{V}{I}=R$. The net resistance between points X and Y is equal to the net resistance of R₁ and R₂. As R₁ and R₂ are connected in series, so the net resistance will be (R₁ + R₂) = $9\text{Ω}$.

$\Rightarrow \frac{V}{I}=9\text{Ω}$

Hence the correct option is Option 1.