Magnetic Field of a Dipole

Which of the following best describes a magnetic dipole?

• A single isolated magnetic pole

• An object with a distinct north and south magnetic pole

• A charged particle moving in a straight line

• A material that completely blocks magnetic fields

According to the right-hand rule, if current flows in a circular loop, the magnetic field lines inside the loop will:

• Point in the direction of the current flow

• Point perpendicular to the plane of the loop

• Form concentric circles around the wire

• Point outwards from the center of the loop in all directions

What is a key distinction between electric dipoles and magnetic dipoles?

• Electric dipoles are always stronger than magnetic dipoles

• Magnetic dipoles can exist as isolated monopoles, unlike electric dipoles

• Electric dipoles consist of two opposite charges, while magnetic dipoles consist of two opposite poles that cannot be isolated

• Electric dipoles only interact with electric fields, while magnetic dipoles only interact with magnetic fields

When a compass needle is placed in an external magnetic field, how does it typically orient itself?

• It aligns randomly due to thermal fluctuations

• It aligns perpendicular to the magnetic field lines

• It aligns parallel to the magnetic field lines

• It aligns opposite to the direction of the magnetic field lines