Fundamentals of Electricity Quiz

What is the SI unit of electric current?

• Volt

• Ampere

• Ohm

• Watt

Which formula correctly represents electric power?

• P = I/R

• P = V/I

• P = V × I

• P = I - V

Which of the following is a semiconductor material?

• Copper

• Glass

• Silicon

• Plastic

Which material is a good conductor of electricity?

• Rubber

• Aluminum

• Wood

• Glass

Which type of resistor allows manual adjustment of resistance?

• Carbon film

• Wire wound

• Potentiometer

• Metal oxide

Which factor does NOT affect resistance?

• Length of conductor

• Cross-sectional area

• Voltage applied

• Temperature

In a series circuit, the total resistance is:

• Smaller than the smallest resistor

• The same as the smallest resistor

• Sum of all resistors

• Product of all resistors

In a parallel circuit, the voltage across each resistor is:

• Different

• Zero

• Equal

• Half of the total voltage

The unit of inductance is:

• Farad

• Ohm

• Henry

• Watt

Which type of inductor uses a magnetic core?

• Air-core

• Ferrite-core

• Vacuum-core

• Plastic-core