Electric Motor Build - Make a simple electric motor

The video tutorial explains the working of a simple electric motor, detailing its components such as the stator, rotor, shaft, and commutator. It describes how magnetic fields interact with electric currents to cause rotation, using concepts like Fleming's left-hand rule. The tutorial also provides step-by-step instructions for building a motor, including materials and assembly techniques, emphasizing the importance of reversing current direction to maintain rotation.

What is the role of the commutator in a simple electrical motor?

• To hold the magnets in place

• To reverse the direction of current

• To provide a smooth rotation

• To connect the motor to a power supply

How do the rotor and stator interact in a motor?

• They interact through magnetic fields causing rotation

• They do not interact with each other

• They create a magnetic field that repels each other

• They create a magnetic field that attracts each other

What does Fleming's left-hand rule help determine?

• The voltage required for rotation

• The direction of wire movement

• The direction of the magnetic field

• The speed of the motor

What happens when you wrap a wire into a coil?

• The magnetic field weakens

• The magnetic field strengthens

• The wire becomes non-conductive

• The current stops flowing

How can you keep an electromagnetic coil spinning continuously?

• By increasing the voltage

• By reducing the coil turns

• By using a stronger magnet

• By flipping the direction of current

What material is suggested for the rotor coil in the motor?

• Copper wire

• Steel wire

• Aluminum wire

• Plastic wire

Why is it important to remove the enamel from the wire ends?

• To ensure a strong magnetic field

• To prevent the wire from breaking

• To improve electrical connection

• To make the wire more flexible

What is the purpose of using bearings in the motor assembly?

• To connect the motor to the power supply

• To hold the magnets in place

• To reduce friction and allow smooth rotation

• To increase friction

How can you adjust the speed of the motor?

• By altering the magnet size

• By increasing the coil turns

• By changing the wire thickness

• By adjusting the voltage

What issue might occur with the commutator over time?

• It may spark and damage surfaces

• It may cause the motor to stop

• It may become too smooth

• It may increase the motor speed