5- A rectangular coil of area 10cm2 carrying current of 50 A lies on plane 2x+6y-3z-7 such that the magnetic moment of the coil is directed away from the origin. a) Calculate its magnetic moment b) If the coil is surrounded by field 0.6 ax + 0.4a, + 0.5ax Wb/m2. find the torque on the coil.

The magnetic circuit shown below has mean magnetic path of 0.5 m, a relative permeability of 1000, and a uniform cross sectional area equal to 5×104 m². The coil has 120 turns and, when connected to a 120 v, 60 Hz voltage source, draws 5 A. Determine the inductance of the coil in Henry. Give your answers correct to 3 decimal places. Answer:

Q1) In a two-stimulus magnetic system, the inductance relationships are as follows L11 = L22 = 2H , L12 = L21 = coseH Two coils are connected in parallel to the voltage V=500sin314t. What is the average torque of the system per 0=30°?

Adding a core of magnetic material to an electromagnet: Select one: allows greater current to flow. decreases AC impedance. greatly increases the inductance. eliminates the magnetic poles.