Question

39. When a conducting wire is connected in the
right gap and known resistance in the left gap,
the balancing length is 60cm. The balancing
length becoms 42.4 cm when the wire is
stretched so that its length increases by
1) 10% 2) 20% 3) 25% 4) 42.7%​

Answer 1

Answer:

ANSWER number (3) 25/. 42.7cm