CBT Electronic & Electrical Fundamentals

Question 1

What does Ohm’s Law state?

Accepted Answer

Voltage equals current times resistance

Answer

Voltage equals current plus resistance

Answer

Voltage equals current divided by resistance

Answer

Voltage equals resistance minus current

Question 2

Which unit is used to measure electrical resistance?

Accepted Answer

Ohm

Answer

Ampere

Answer

Volt

Answer

Watt

Question 3

What is the primary function of a capacitor in an AC circuit?

Accepted Answer

Store and release electrical energy

Answer

Increase current flow

Answer

Convert voltage to resistance

Answer

Reduce inductance

Question 4

Which component resists the flow of current in a circuit?

Accepted Answer

Resistor

Answer

Capacitor

Answer

Diode

Answer

Transistor

Question 5

What is the result of connecting resistors in series?

Accepted Answer

Total resistance increases

Answer

Current increases

Answer

Voltage drops to zero

Answer

Resistance cancels out

Question 6

In a DC circuit, what does the power formula P = V × I represent?

Accepted Answer

Power equals voltage times current

Answer

Power is current divided by voltage

Answer

Power is resistance minus current

Answer

Power equals voltage divided by resistance