Current Electricity 4 Question 16
16. A meter bridge is set-up as shown in figure, to determine an unknown resistance using a standard resistor. The galvanometer shows null point when tapping-key is at mark. The end-corrections are and respectively for the ends and . The determined value of is
(2011)
(a)
(b)
(c)
(d)
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Solution:
- Using the concept of balanced Wheat stone bridge, we have,