The resistance of the series combination of two resistances is S. When they are joined in parallel the total resistance is P. If S= nP then the minimum possible value of n is

Options

A. 4
B. 3
C. 2
D. 1

Explanation

To solve the problem, we need to analyze the relationship between the resistances in series and parallel configurations.

### Step-by-Step Solution:

1. **Define the Resistances**: Let the two resistances be \( R_1 \) and \( R_2 \).

2. **Resistance in Series**: The total resistance \( S \) when the resistances are in series is given by:
\[
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