SaraNextGen Study App [2023-24]
Last Updated On 01-06-2023 - By Jeesha Sara

 is a wire of uniform resistance. The galvanometer  shows no current when the length  and  The resistance  is equal to

a)

b)

c)

d)

 


Question ID - 150277 :-

 is a wire of uniform resistance. The galvanometer  shows no current when the length  and  The resistance  is equal to

a)

b)

c)

d)

 

1 Answer
5876 Votes
3537

Answer Key : (c) -

(c)

By Wheatstone bridge,



Next Question :

A heater coil is cut into two parts of equal length and one of them is used in the heater. The ratio of the heat produced by this half coil to that by the original coil is

a)

2 :1

b)

1 :2

c)

1 :4

d)

4 :1


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