Basic Electronics Knowledge Test

Which instrument measures voltage?
Ammeter
Ohmmeter
Voltmeter

Which component allows current to flow in only one direction?
Diode
Resistor
Capacitor

What does LED stand for?
Light Emitting Diode
Low Energy Display
Light Energy Device

According to Ohm's Law, how is current calculated?
I = V × R
I = V / R
I = R / V

How do you find total resistance for resistors in series?
Product
Sum
Sum of reciprocals

What is the primary function of a capacitor?
Limit current
Store energy
Generate magnetic field

What is the most common use of a transistor?
Store energy
Amplify or switch current
Change resistance

What is the equivalent resistance of two 10 Ω resistors in parallel?
20 Ω
10 Ω
5 Ω

What do the first two color bands on a resistor indicate?
First two digits of the value
Tolerance
Multiplier only

Which setting is used on a multimeter to measure resistance?
Volt
Amp
Ohm (Ω)

Basic Electronics Knowledge Test – 10 Questions