Question

Which set lists similarities between a bar magnet and a current-carrying solenoid?

Options

• Radius, total length, and number of turns per unit length

• Temporary nature, reversible poles, and atomic circulating currents

• Permanent nature, fixed poles, and no current

• Field pattern, axial field formula, poles, directive and attractive properties

Answer 1

A bar magnet and an equivalent solenoid share a field pattern, an axial field formula, and poles. They also share directive and attractive properties.