Electrical Engineering questions
and answers
1. Electrical components are used for what primary purpose? - Answers - To
control flow of electricity to produce desired outcome
2. What is an Electrical Engineer? - Answers - One who designs, develops &
maintains electrical control systems/components
3. What do Electrical Engineers focus on as their priorities? - Answers
- Economy, safety, reliability, quality, sustainability
4. How do electrical engineers communicate designs? - Answers - Electrical
diagrams: Pictorial Diagram, Wiring Diagram, Schematic Diagram
5. What are Printed Circuit Boards (PCBs) used for? - Answers - To
mechanically support & electrically connect electronic components
using conductive pathways
6. What is a wire? - Answers - A conductor of electrical current
7. What is a toggle switch? - Answers - A switch that when "open" disrupts
flow of current
8. What is a pushbutton switch? - Answers - When pushed, circuit is
completed, current can flow
9. What is a relay? - Answers - Uses voltage to control another voltage
10.What is a transistor? - Answers - Semiconductor used to amplify/switch
electronic signals & electrical power
, 11.What is a resistor? - Answers - Reduces flow of current
12.What is a variable resistor? - Answers - A controllable resistor, usually
with 2 terminals
13.What is a photocell? - Answers - Converts light energy into electricity
14.What is a diode? - Answers - Allows current flow in 1 direction
15.What is a capacitor? - Answers - Used to store electrical charge
16.What is an inductor? - Answers - A coil that generates magnetic field
17.What is a battery? - Answers - A device that stores chemical energy and
converts it to electrical energy
18.What unit is used to measure electrical resistance? - Answers - Ohm
19.What unit is used to measure electrical current? - Answers - Ampere
20.What unit is used to measure electrical voltage? - Answers - Volt
21.What unit is used to measure electrical power? - Answers - Watt
22.What is Ohm's Law? - Answers - V = I × R (Voltage = Current ×
Resistance)
23.In a series circuit, how does the current behave? - Answers - Same current
flows through all components
24.In a parallel circuit, how does the voltage behave? - Answers - Same
voltage across each branch
25.What is Kirchhoff's Voltage Law (KVL)? - Answers - Sum of voltages
around any closed loop equals zero
and answers
1. Electrical components are used for what primary purpose? - Answers - To
control flow of electricity to produce desired outcome
2. What is an Electrical Engineer? - Answers - One who designs, develops &
maintains electrical control systems/components
3. What do Electrical Engineers focus on as their priorities? - Answers
- Economy, safety, reliability, quality, sustainability
4. How do electrical engineers communicate designs? - Answers - Electrical
diagrams: Pictorial Diagram, Wiring Diagram, Schematic Diagram
5. What are Printed Circuit Boards (PCBs) used for? - Answers - To
mechanically support & electrically connect electronic components
using conductive pathways
6. What is a wire? - Answers - A conductor of electrical current
7. What is a toggle switch? - Answers - A switch that when "open" disrupts
flow of current
8. What is a pushbutton switch? - Answers - When pushed, circuit is
completed, current can flow
9. What is a relay? - Answers - Uses voltage to control another voltage
10.What is a transistor? - Answers - Semiconductor used to amplify/switch
electronic signals & electrical power
, 11.What is a resistor? - Answers - Reduces flow of current
12.What is a variable resistor? - Answers - A controllable resistor, usually
with 2 terminals
13.What is a photocell? - Answers - Converts light energy into electricity
14.What is a diode? - Answers - Allows current flow in 1 direction
15.What is a capacitor? - Answers - Used to store electrical charge
16.What is an inductor? - Answers - A coil that generates magnetic field
17.What is a battery? - Answers - A device that stores chemical energy and
converts it to electrical energy
18.What unit is used to measure electrical resistance? - Answers - Ohm
19.What unit is used to measure electrical current? - Answers - Ampere
20.What unit is used to measure electrical voltage? - Answers - Volt
21.What unit is used to measure electrical power? - Answers - Watt
22.What is Ohm's Law? - Answers - V = I × R (Voltage = Current ×
Resistance)
23.In a series circuit, how does the current behave? - Answers - Same current
flows through all components
24.In a parallel circuit, how does the voltage behave? - Answers - Same
voltage across each branch
25.What is Kirchhoff's Voltage Law (KVL)? - Answers - Sum of voltages
around any closed loop equals zero
