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Question : 17
Total: 26
(a) Write the principle of working of a metre bridge.
(b) In a metre bridge, the balance point is found at a distancel 1 R S
An unknown resistanceX S l 2 X l 1 , l 2 S
(b) In a metre bridge, the balance point is found at a distance
An unknown resistance
Solution:
(a) Principle of meter bridge
(b) Relation betweenl 1 , l 2 S
(a) The principle of working of a meter bridge is same as that of a balanced Wheatstone bridge.
(Alternatively:
When,i g = 0
=
(ii)
=
WhenX
=
On solving, we get
X =
(b) Relation between
(a) The principle of working of a meter bridge is same as that of a balanced Wheatstone bridge.
(Alternatively:
When,
(ii)
When
On solving, we get
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