Quiz 1.1

1. [Recall] What type of field is associated with the operation of a transformer?

• A magnetic field
• An electric field
• A gravitational field
• A mechanical field

2. [Recall] Which material is commonly used as the core in a transformer?

• Iron
• Copper
• Aluminum
• Silver

3. [Recall] What type of current is typically used in transformers?

• Direct current (DC)
• Alternating current (AC)
• Static current
• Linear current

4. [Application] In a transformer, which winding is connected to the input power source?

• The primary winding
• The secondary winding
• The core
• The power source

5. [Application] What type of transformer increases the voltage from the input to the output?

• Step-up transformer
• Step-down transformer
• Isolation transformer
• Autotransformer

6. [Application] In a transformer, what is the quantity that is increased or decreased between the input and output?

• Voltage
• Current
• Resistance
• Capacitance

7. [Analysis] Which factor determines the voltage transformation ratio in a transformer?

• The number of turns in the primary and secondary windings
• The resistance of the primary and secondary windings
• The current in the primary and secondary windings
• The power in the primary and secondary windings

8. [Analysis] What is the primary function of a transformer?

• It can transfer electrical energy between two or more circuits
• It can amplify electrical signals
• It can convert AC to DC
• It can generate high-frequency signals

9. [Analysis] What type of core material is commonly used in transformers?

• Laminated iron cores
• Aluminum cores
• Copper cores
• Composite cores

What type of transformer Decreases the voltage from the input to the output?

• Step up transformer

• step down transformer

• auto transformer

• none of these