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Fundamental of Electricity and Electronics


Quiz Questions

1.What does the following picture represent?
PDH Course - Fundamental of Electricity and Electronics 1
Hydrogen peroxide
Water molecule
Ozone molecule
Hydrochloric acid
2. The neutron has approximately the same mass as the proton.
True
False
3.The maximum number of electrons that can be contained in any shell or sub-shell is the same for all atoms and is defined as Electron Capacity =_________ . In this equation n represents the energy level in question.
2n
2n2
2n3
2n2+1
4.Elements such as gold, copper and silver possess many free electrons and make good ______________.?
Conductors
Insulators
Semi-conductors
None of the above
5.Which of the following figure shows arrangement of molecules in a piece of magnetized magnetic material?
PDH Course - Fundamental of Electricity and Electronics 2

Figure A
Figure B
6. The following picture represents _____________________.?
PDH Course - Fundamental of Electricity and Electronics 3
Right hand rule
Left hand rule
Current rule
None of the above
7.

Charge ‘Q’ is measured in ____________.?

Volts
Coulombs
Joules
8. If I = Current in amperes (A), E = Voltage (V), R = Resistance (Ω) then Ohm’s law may be expressed as _____________.?
I = E/R
I = ER
I = ER2
9.If we have a conductor that is 1 meter long with a cross-sectional area of 1 mm2 and has a resistance of 0.017 ohm, what is the resistance of 50m of wire from the same material but with a cross-sectional area of 0.25 mm2?
2.4Ω
3.4Ω
4.4Ω
5.4Ω
10.The resistance of a material is determined by _________________.?
Material
Length and area
Temperature
All the above