The magnetic field inside a long straight solenoid-carrying current
is uniform inside the solenoid
Correct Answer: (d) is uniform inside the solenoid
Explanation: The magnetic field inside a solenoid is uniform and parallel to its axis, irrespective of the position inside it.
Three infinitely long wires, each carrying equal current are placed in the xy-plane along x = 0, +d and −d. On the xy-plane, the magnetic field vanishes at
Choose the incorrect statement from the following regarding magnetic lines of field -
A wire of length L is bent in the form a circular loop. And current is passed through the loop. The magnetic field induction at the centre of the loop is B. Find the current passing through the loop.
The magnetic field at the centre of a circular coil of radius r and carrying I is B. What is the magnetic field at a distance \(x = \sqrt{3}r\) from the centre, on the axis of the coil?
Two identical coils carry equal currents and have a common center, but their planes are at right angles to each other. What is the magnitude of the resultant magnetic field at the center, if field due to one coil alone is B?