Quiz on Transformers

What is a key feature of transformers regarding moving parts?

• They have many moving parts

• They have no moving parts

• They have a few moving parts

• They have adjustable moving parts

What happens when a conductor is placed inside a magnetic field?

• It heats up

• A current is induced

• It changes color

• It becomes heavier

Which part of the transformer is connected to the input voltage?

• Secondary coil

• Iron core

• Primary coil

• Outer casing

In a transformer, what does the primary coil do with the alternating potential difference?

• It converts it to direct current.

• It induces a magnetic field.

• It dissipates it as heat.

• It stores it as potential energy.

What is the main purpose of a transformer in electrical circuits?

• To store electrical energy

• To convert electrical energy to mechanical energy

• To change the voltage level

• To generate electricity

What does the alternating potential difference in the primary coil cause?

• A decrease in current.

• A current to flow.

• A constant voltage.

• A direct current.

In a transformer, what does the iron core primarily do?

• Conducts electricity.

• Increases resistance.

• Enhances the magnetic field.

• Reduces voltage.

Which of the following is NOT a function of the primary coil in a transformer?

• Creating an alternating potential difference.

• Inducing a magnetic field.

• Conducting direct current.

• Causing a current to flow.

Which of the following is a key component of a transformer?

• Resistor.

• Capacitor.

• Iron core.

• Diode.

Which part of the transformer is directly connected to the power source?

• Iron core

• Primary coil

• Secondary coil

• Insulation