Current Electricity Part 1

Section: Physics

Question : 42 of 100

Marks: +1, -0

In a meter bridge experiment resistances are connected as shown in the figure.Initially resistance P=4Ω and the neutral point N is at 60 cm from A. Now an unknown resistance R is connected in series to P and the new position of the neutral point is at 80 cm from A. The value of unknown resistance R is :

[Main 9 April 2017]

33
5
Ω
6Ω
7Ω
20
3
Ω

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