The figure given below shows a long straight solid wire of circular cross-section of radius ' a ' carrying steady current I . The current…
NEET 2026 · Medium
A tightly wound 100 turns coil of radius 10 cm carries a current of 7 A. The magnitude of the magnetic field at the centre of the coil is…
NEET 2024 · Easy
A 100-turn closely wound circular coil of radius 5 cm has a magnetic field of 3.14×10^-3 T at its centre. The current flowing through the…
NEET 2026 · Medium
A galvanometer of resistance 100\ Ω gives full scale deflection for a current of 1 mA. It is converted into an ammeter of range 0 - 10 A.…
NEET 2026 · Easy
A current I_0 flows through a metallic circular loop of radius r as shown in the figure. Resistance of the segment ABC is half that of ADC…
RE-NEET 2026 · Medium
Two infinitely long parallel conducting wires A and B carry currents I and 2I , respectively, in the same direction. The wire A has…
RE-NEET 2026 · Medium
