20240207wed-lm - Inducing Current.

When current flows through a wire, which of the following phenomena occurs?

• Inducing gravitational force

• Inducing magnetic force

• Inducing electric force

• Inducing frictional force

What is the name of the phenomenon where current flowing through a wire induces a magnetic field around the wire?

• Magnetic induction

• Electric induction

• Gravity induction

• Friction induction

When a wire carries an electric current, what is the shape of the magnetic field around the wire?

• Circular

• Rectangular

• Spherical

• Irregular

True or False: The strength of the magnetic field around a current-carrying wire increases with the amount of current flowing through the wire.

• True

• False

What is the term used to describe the force experienced by a wire carrying current in a magnetic field?

• Electric force

• Gravitational force

• Magnetic force

• Frictional force

When a wire carrying current is placed in a magnetic field, in what direction does the induced force act on the wire?

• Parallel to the magnetic field

• Perpendicular to the magnetic field

• Opposite to the direction of the magnetic field

• In the same direction as the magnetic field

True or False: The strength of the magnetic field around a current-carrying wire decreases as the distance from the wire increases.

• True

• False

What happens to the strength of the magnetic field around a wire if the current flowing through the wire is doubled?

• It remains the same

• It becomes half

• It doubles

• It becomes zero

What type of force is induced when current flows through a loop of wire placed in a magnetic field?

• Torque

• Tension

• Friction

• Gravity

True or False: The presence of magnetic force or torque is observed only when current flows through a loop of wire and not a straight wire.

• True

• False