Question

in a meter bridge with a standard resistance of 15ohm in the right gap,the ratio of balancing length is 3:2.find the value of other resistance.​

Answer 1

Answer:

For meter bridge:

Q

P

=

100−l

l

where P= unknown resistance , Q= known resistance, l= balancing length.

Thus, P=

100−l

l

×Q=

100−20

20

×1=

4

1

=0.25Ω