Electronics Quiz

Current equals:

What are the unit and symbol for current?

Voltage is ________.

• the opposition to the flow of current

• the movement of free electrons

• the force that exists between charged particles

• the force that causes water to flow

Material that consists of a mixture of elements is considered to be:

• an element

• an ion

• a compound

• a molecule

Which voltage source converts chemical energy to electrical energy?

• Electrical generator

• Battery

• Solar cell

• Electronic power supply

How many valence shell electrons are there in semiconductor atoms?

• 16

• 8

• 4

• 2

Which part of an atom has no electrical charge?

• Electron

• Neutron

• Proton

• All of the above

What is the color code for a 220 5% resistor?

• Red, Red, Brown, Gold

• Orange, Orange, Black, Gold

• Red, Red, Black, Gold

• Red, Red, Brown, Silver

An electron is the smallest subatomic particle of negative charge that orbits the nucleus of the atom.

• True

• False

Which resistive component is designed to be temperature sensitive?

• Thermistor

• Rheostat

• Potentiometer

• Photoconductive cell