A battery is connected between two points A and B on the circumference of a uniform conducting ring of radius r and resistance R. One of the arcs AB of the ring subtends an angle $$\theta $$ at the centre. The value of the magnetic induction at the centre due to the current in the ring is [IIT 1995]

Question

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NA

TuteeHUB · Answer

Proportional to $$2\,(180{}^\circ -\theta )$$

TuteeHUB · Answer

Inversely proportional to r

TuteeHUB · Answer

Zero, only if $$\theta =180{}^\circ $$

TuteeHUB · Answer

Zero for all values of $$\theta $$

1.	A battery is connected between two points A and B on the circumference of a uniform conducting ring of radius r and resistance R. One of the arcs AB of the ring subtends an angle \[\theta \] at the centre. The value of the magnetic induction at the centre due to the current in the ring is [IIT 1995]
A.	Proportional to \[2\,(180{}^\circ -\theta )\]
B.	Inversely proportional to r
C.	Zero, only if \[\theta =180{}^\circ \]
D.	Zero for all values of \[\theta \]
Answer» E.

A battery is connected between two points A and B on the circumference of a uniform conducting ring of radius r and resistance R. One of the arcs AB of the ring subtends an angle \[\theta \] at the centre. The value of the magnetic induction at the centre due to the current in the ring is [IIT 1995]

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