WorksheetsQuiz on Transformers
Total questions: 13
Worksheet time: 7mins
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
In a transformer, what does the alternating magnetic field in the iron core do?
It creates a static electric field.
It induces a potential difference in the primary coil.
It induces a potential difference in the secondary coil.
It blocks the flow of current.
What is the function of the iron core in a transformer?
To conduct electricity
To induce a direct current
To induce an alternating magnetic field
To act as a resistor
What is the symbol for the secondary voltage in the transformer diagram?
Vp
Vs
Ip
Is
