Which type of wires (copper, aluminum, or string) are ferromagnetic metals?

Avery long solenoid of inner radius 2.75 cm creates an oscillating magnetic field of the form = for this solenoid, =0.00425 t and =319 rad/s. (a)what is the maximum value of the induced electric field at a perpendicular distance 1.45 cm from the axis of the solenoid? (b) what is the maximum value of the inducted electric field at a point 5.85 cm perpendicular from the axis of the solenoid?

Ways that industry and agriculture use physical properties to separate substances

How much energy must a refrigerator absorb from 225 g of water so that the temperature of the water will drop from 35°c to 5°c