Sahay Sir > Question Answers > A long straight wire of radius a carries a steady current I. The current is uniformly distributed over its cross-section. The ratio o the magnetic fields B and B′
A 250- Turn rectangular coil of length 2.1 cm and width 1.25 cm carries a current of 85 μA and subjected to a magnetic field of strength 0.85 T. Work done for rotating the coil by 1800 against the torque is
19
Aug
A 250- Turn rectangular coil of length 2.1 cm and width 1.25 cm carries a current of 85 μA and subjected to a magnetic field of strength 0.85 T. Work done for rotating the coil by 1800 against the torque is A long straight wire of radius a carries a steady current I. The current [...]
A long straight wire of radius a carries a steady current I. The current is uniformly distributed over its cross-section. The ratio o the magnetic fields B and B′, at radial distances a/2 and 2a respectively, from the axis of the wire is
19
Aug
A long straight wire of radius a carries a steady current I. The current is uniformly distributed over its cross-section. The ratio o the magnetic fields B and B′, at radial distances a/2 and 2a respectively, from the axis of the wire is A long straight wire of radius a carries a steady current I. [...]