Magnetism and Electromagnetism - General Questions (3)

What is the flux density when the flux is 5.5 Wb and the cross-sectional area is 6 × 10^–3 m²?

A coil of wire is placed in a changing magnetic field. If the number of turns in the coil is decreased, the voltage induced across the coil will

What is the reluctance of a material that has a length of 0.07 m, a cross-sectional area of 0.014 m², and a permeability of 4,500 Wb/At × m?

When the current through the coil of an electromagnet reverses, the

If the cross-sectional area of a magnetic field increases, but the flux remains the same, the flux density

For a given wirewound core, an increase in current through the coil

The induced voltage across a coil with 250 turns that is located in a magnetic field that is changing at a rate of 8 Wb/s is

When the speed at which a conductor is moved through a magnetic field is increased, the induced voltage