Question: the magnetic field in a solenoid is b 0ni...
The magnetic field in a solenoid is B = (µ0NI) / d. A circular wire of radius 11 cm is concentric with a solenoid of radius 2 cm and length d = 1 meter, containing 10000 turns. The current increases at a rate of 44 A/s. What is the emf in the wire?
What is the non-Coulomb electric field in the wire?