Question 1 of 10
What is the fundamental principle behind the operation of a transformer?
Transformers function based on the principle of electromagnetic induction, transferring energy between coils via a changing magnetic field.
Question 2 of 10
Which component in a transformer creates the changing magnetic field?
The primary coil, connected to the AC source, generates the changing magnetic field.
Question 3 of 10
What is the purpose of the core in a transformer?
The core provides a path for the magnetic field to travel from the primary to the secondary coil.
Question 4 of 10
Which coil receives the induced voltage?
The secondary coil receives the changing magnetic field and induces a voltage within it.
Question 5 of 10
How does a step-up transformer differ from a step-down transformer in terms of coil turns?
A step-up transformer has more turns on the secondary coil, while a step-down transformer has fewer turns on the secondary coil.
Question 6 of 10
Why are transformers essential in power transmission?
Transformers allow for voltage step-up for efficient transmission and step-down for safe distribution, reducing losses.
Question 7 of 10
What type of current is required for a transformer to operate?
Transformers only work with AC because it produces a changing magnetic field.
Question 8 of 10
What is the relationship between the number of turns and the voltage in a transformer?
The voltage is directly proportional to the number of turns in the coil. More turns, higher voltage.
Question 9 of 10
Which component supplies the alternating current to the primary coil?
The AC generator provides the alternating current to the primary coil.
Question 10 of 10
What is the voltage generated in the secondary coil called?
The voltage generated in the secondary coil is called induced EMF.
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