Current Electricity, Charging & Discharging Of Capacitors / वर्तमान बिजली, चार्ज और कैपेसिटर का निर
JEE Main & Advanced
Physics
Current Electricity, Charging & Discharging Of Capacitors / वर्तमान बिजली, चार्ज और कैपेसिटर का निर
Question Bank
Critical Thinking
question_answer
In the shown arrangement of the experiment of the meter bridge if AC corresponding to null deflection of galvanometer is x, what would be its value if the radius of the wire AB is doubled [IIT-JEE (Screening) 2003]
A) x
B) x/4
C) 4x
D) 2x
Correct Answer:
A
Solution :
Balancing length is independent of the cross sectional area of the wire.