WorksheetsElectrical Systems and Components
Total questions: 10
Worksheet time: 5mins
What is the relationship between voltage (V), current (I), and resistance (R) according to Ohm's Law?
V = I × R
V = I ÷ R
V = R + I
V = I² × R
Which type of electrical circuit has components connected so that current has only one path to follow?
Parallel circuit
Series circuit
Combination circuit
Integrated circuit
What is the total resistance of three 10Ω resistors connected in parallel?
30Ω
10Ω
3.33Ω
0.3Ω
Which component is used to temporarily store electrical energy in an electric field?
Inductor
Resistor
Capacitor
Transistor
What is the primary purpose of a fuse in an electrical circuit?
To increase current
To protect against overcurrent
To store energy
To regulate voltage
If a 12V battery supplies 2A of current to a circuit, what is the power consumed?
6 watts
10 watts
14 watts
24 watts
Which wiring diagram symbol represents a normally closed relay contact?
A) ——/——
B) ——//——
C) ——|/|——
D) ——|———
What does GFCI stand for in electrical safety?
Ground Fault Circuit Interrupter
General Function Control Interface
Ground Force Current Indicator
General Fault Control Instrument
In a three-phase AC power system, what is the phase angle difference between consecutive phases?
90°
120°
180°
240°
Which type of cable would be most appropriate for connecting a control panel to a motor in an industrial environment with electrical noise?
Twisted pair
Coaxial
Shielded cable
Ribbon cable
