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.
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Answered by
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
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