Calculating the Force on a Conducting Wire in a Magnetic Field

The video tutorial explains how to calculate the force on a conducting wire in a magnetic field, known as the motor effect. It covers the factors affecting the force's magnitude, such as current, magnetic field strength, and wire length. The tutorial provides a formula for calculating the force when the wire and magnetic field are at right angles. It includes example calculations to demonstrate the process and explains how to determine magnetic flux density using given values.

What is the motor effect?

• A force experienced by a current-carrying conductor in a magnetic field.

• A force experienced by a stationary conductor in a magnetic field.

• A force experienced by a magnet in a non-magnetic field.

• A force experienced by a non-conducting wire in a magnetic field.

Which factor does NOT affect the magnitude of the force on a conducting wire in a magnetic field?

• The strength of the magnetic field.

• The color of the wire.

• The length of the wire in the magnetic field.

• The current flowing through the wire.

What is the condition for using the formula to calculate the force on a wire in a magnetic field?

• The wire must be at a right angle to the magnetic field.

• The wire must be parallel to the magnetic field.

• The wire must be outside the magnetic field.

• The wire must be at a 45-degree angle to the magnetic field.

In the formula F = BIL, what does 'B' represent?

• The current in the wire.

• The length of the wire.

• The force on the wire.

• The magnetic flux density.

If a wire of length 2 meters carries a current of 1.5 amps in a magnetic field of 12 teslas, what is the force on the wire?

• 48 newtons

• 18 newtons

• 24 newtons

• 36 newtons

What is the magnetic flux density if a wire of length 0.5 meters carrying 2.5 amps experiences a force of 0.5 newtons?

• 0.2 teslas

• 0.8 teslas

• 0.6 teslas

• 0.4 teslas

How do you calculate the magnetic flux density if the force and current are known?

• Subtract the current from the force.

• Add the force and current.

• Multiply the force by the current.

• Divide the force by the product of current and length.