Search any question & find its solution
Question:
Answered & Verified by Expert
A battery is connected between two points and on the circumference of a uniform conducting ring of radius and resistance . One of the arcs of the ring subtends an angle at the centre. The value of the magnetic induction at the centre due to the current in the ring is
Options:
Solution:
1951 Upvotes
Verified Answer
The correct answer is:
zero for all values of
For a current flowing into a circular arc, the magnetic induction at the centre is
or
In the given problem, the total current is divided into two arcs

or
i.e., magnetic field at centre due to arc is equal and opposite to the magnetic field at centre due to arc . Or the net magnetic field at the centre is zero.
or
In the given problem, the total current is divided into two arcs

or
i.e., magnetic field at centre due to arc is equal and opposite to the magnetic field at centre due to arc . Or the net magnetic field at the centre is zero.
Looking for more such questions to practice?
Download the MARKS App - The ultimate prep app for IIT JEE & NEET with chapter-wise PYQs, revision notes, formula sheets, custom tests & much more.