Inv5.Exp2 TextA (pg.213-219)

What experiences a force when moving through a magnetic field?

• A wooden block

• A plastic rod

• A moving charge

• A stationary charge

How can the force on a current-carrying wire in a magnetic field be measured?

• By using a voltmeter

• By using a scale and two magnets

• By using a thermometer

• By using a stopwatch

What rule is used to determine the direction of the force on a current-carrying wire in a magnetic field?

• Left-hand rule

• Right-hand rule

• Thumb rule

• Fleming's law

What is proportional to the force on a current-carrying wire in a magnetic field?

• The wire's resistance

• The wire's color

• The wire's temperature

• The current, magnetic field, and length of wire

What causes rotational motion in an extended system?

• Static equilibrium

• Forces applied at the same location

• Forces applied at different locations

• Uniform motion

What produces a torque on a current-carrying loop in a magnetic field?

• A chemical reaction

• A single force

• A magnetic monopole

• A lever arm

What is the most common application of magnetically induced torque on wire loops?

• Solar panels

• Magnetic resonance imaging (MRI)

• Electric motors

• Wireless charging

Which component alternates the direction of the current in a brushed direct current motor?

• A battery

• A transformer

• A set of electrically conductive brushes

• A solar cell

What is the relationship between the force, field, and scale in the context of magnetic forces on current-carrying wires?

• Parallel

• Perpendicular

• Opposite

• Tangential

How can the force on the wire be measured?

• By placing it between two magnets generating a magnetic field

• By heating the wire to a high temperature

• By exposing the wire to direct sunlight

• By submerging the wire in water