Question

in a meter bridge when a wire is connected in the left gap the balancing length is 40cm when awire is cut into 2 equal parts and the 2 are connected in parallel un the left gap new balancing length is

Answer 1

Explanation:

the new balancing length is 20

Answer 2

Answer:

The correct answer is 20.

Explanation:

Given that:

Let the meter bridge when a wire is connected in the left gap the balancing length is 40cm when a wire is cut into 2 equal parts and the 2 are connected in parallel the left gap

To find:

New balancing length =?

Let us consider that, in meter bridge that when a wire will be connected to left gap and let the balancing length be = 40 cm

Now, let the wire that is cut into two pieces and both are connected parallel in the left gap.

Formula:

A new balancing length = total length / cut into two equal parts

Here, total length = 40 cm, cut into two equal parts =2

40/2 =20

Therefore, the new balancing length is 20 cm.

#SPJ3