Electronics technology

1. Which component can amplify electrical signals?

• Resistor

• Transistor

• Capacitor

• Diode

2. What does a fuse do in a circuit?

• Store energy

• Control current

• Protect from overload

• Amplify signals

3. Which component allows current to flow only in one direction?

• Inductor

• Transistor

• Diode

• Switch

4. What electrical component is used to open or close a circuit?

• Fuse

• Switch

• Transformer

• Resistor

5. What type of current changes direction periodically?

• Direct Current

• Alternating Current

• Static Current

• Constant Current

6. Which circuit type connects components end to end?

• Parallel

• Series

• Combination

• Complex

7. In a parallel circuit, voltage across each component is:

• Different

• Same

• Zero

• Twice

8. What is the unit of electrical current?

• Volt

• Ampere

• Ohm

• Watt

9. What device steps up or steps down voltage?

• Transformer

• Diode

• Resistor

• Capacitor

10. Ohm’s Law is stated as:

• V = IR

• I = VR

• R = VI

• V = I/R