Two diametrically opposite points of a uniform metal ring (radius, R) are connected to the terminals of a battery. If the current drawn from the battery is I, the magnetic induction at the centre of the ring has a magnitude
A. \(\frac{\mu_{0} I}{R}\)
B. \(\frac{\mu_{0} I}{2R}\)
C. \(\frac{\mu_{0} I}{4R}\)
D. zero
Answer:D
Two diametrically opposite points of a uniform metal ring (radius, R) are connected to the terminals of a battery. If the current drawn from the battery is I, the magnetic induction at the centre of the ring has a magnitude
A. \(\frac{\mu_{0} I}{R}\) B. \(\frac{\mu_{0} I}{2R}\) C. \(\frac{\mu_{0} I}{4R}\) D. zero