WorksheetsElectrical Concepts Quizs
Total questions: 20
Worksheet time: 10mins
Total resistance of a series circuit consisting of three resistors with values of 100Ω, 250Ω, and 350Ω
600Ω
700Ω
800Ω
750Ω
Does NOT conduct electricity?
Glass
Copper
Aluminum
Iron
Current flowing in a circuit with a 12V battery and resistors of 60Ω, 30Ω, 100Ω, and 45Ω in series
51mA
75mA
100mA
25mA
Two values of a right-angled triangle used to calculate the tangent of an angle
Adjacent and Opposite
Hypotenuse and Opposite
Adjacent and Hypotenuse
Opposite and Angle
SI unit of measurement symbol for Luminous intensity is cd (candela).
cd (candela)
lm (lumen)
lx (lux)
W (watt)
An Electric storage heater uses the heating method of?
Conduction
Radiation
Convection
Induction
Quantity symbol for Impedance?
Z
R
X
Y
The voltage of the alternator is shown in the form of a?
Sinusoidal waveform
Square waveform
Triangular waveform
Rectangular waveform
A resistor network with three resistors 9Ω, 3Ω, 2Ω are connected in parallel. What will their combined resistance be?
105 ohms
1.5 ohms
6 ohms
4 ohms
Current cannot flow without potential difference (pd).
Potential difference is necessary for current to flow.
Current can flow without potential difference.
Potential difference is not required for current flow.
Current and potential difference are unrelated.
Maximum current drawn by a cooker with 4 x 1.5 kW hot plates, a 2 kW grill, and a 3.5 kW oven supplied from a 230 V AC supply
30A
40A
50A
60A
Calculate the resistance of a resistor which absorbs 5000W when a current of 15A passes through it.
10.00 Ω
15.00 Ω
22.22 Ω
30.00 Ω
Component used to control or reduce current flow
Capacitor
Inductor
Resistor
Transformer
Statement that is not true
Watts is equal to amps/volts
Watts is equal to volts/amps
Watts is equal to amps times volts
Watts is equal to volts divided by amps
Makes use of the magnetic effect of an electric current?
Electric doorbell
Electric fan
Light bulb
Toaster
Meter used in an electrical installation for recording the energy used?
A kilowatt hour meter
A voltmeter
An ammeter
A power factor meter
SI unit of measurement symbol for Magnetic flux is Wb (weber).
Wb (weber)
J (joule)
V (volt)
A (ampere)
If a lever has a fulcrum in the middle between the force and load it is known as a?
Class 1 Lever
Class 2 Lever
Class 3 Lever
Compound Lever
1.25Ω
1.00
1.25
1.50
1.75
A device consists of a soft iron bar with a single coil of insulated wire wound on it. When a current flows in the coil, the device acts as?
A Transformer
An Inductor
An Electromagnet
A Capacitor
