A balance point in a meter bridge experiment is obtained at 30 cm from the left. If right gap contains `3.5 Omega` , what is the resistance in the left gap ?

Explanation

To solve the problem step by step, we can follow these instructions:

### Step 1: Understand the given information
We know that:
- The balance point on the meter bridge is at 30 cm from the left side (let's denote this as \( l_1 = 30 \, \text{cm} \)).
- The resistance in the right gap (denote as \( R_2 \)) is \( 3.5 \, \Omega \).
- The total length of the meter bridge is \( 100 \, \text{cm} \).

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