ONLINE TEST TECHNICIAN

What is the unit of electric current?

• Ohm

• Volt

• Ampere

• Watt

What does Ohm's Law state?

• Ohm

• Volt

• Ampere

• Watt

If a circuit has a 12V battery and a resistance of 6 ohms, what is the current flow?

• 2 A

• 6 A

• 0.5 A

• 24 A

Which law states that the sum of currents entering a junction equals the sum of currents leaving the junction?

• Kirchoff's Law

• Ohm's Law

• Newton's Law

• Relativity Law

Which component allows current to flow only in one direction?

• Resistor

• Diode

• Capacitor

• Transistor

What is the primary function of a resistor in a circuit?

• Store energy

• Amplify signals

• Limit current flow

• Convert AC to DC

Which of the following is an active electronic component?

• Transistor

• Capacitor

• Resistor

• Inductor

What type of resistor changes resistance based on temperature?

• Potentiometer

• Thermistor

• Rheostat

• Photoresistor

What is the total resistance of two resistors (10Ω and 20Ω) in parallel?

• 30Ω

• 6.67Ω

• 15Ω

• 3Ω

What is the formula for electrical power?

• P = VI

• P = IR

• P = V²R

• P = I/R