EIAT and NEIEP Test FREE NEIEP Electrical Theory Questions and Answers 1 — Questions and Answers
Question 1: What does Ohm's Law state?
- Voltage equals current multiplied by resistance (V = IR) (Correct answer)
- Current equals voltage multiplied by resistance
- Resistance equals voltage multiplied by current
- Power equals current divided by voltage
Correct answer: Voltage equals current multiplied by resistance (V = IR)
Ohm's Law states V = IR, meaning voltage (V) equals current (I) times resistance (R).
Question 2: What is the unit of electrical current?
- Ampere (Correct answer)
- Volt
- Ohm
- Watt
Correct answer: Ampere
Electrical current is measured in amperes (amps), named after physicist André-Marie Ampère.
Question 3: In a series circuit with three resistors of 4Ω, 6Ω, and 10Ω, what is the total resistance?
- 20Ω (Correct answer)
- 10Ω
- 2.4Ω
- 60Ω
Correct answer: 20Ω
In a series circuit, total resistance = sum of all resistors = 4 + 6 + 10 = 20Ω.
Question 4: What happens to total resistance when resistors are connected in parallel?
- Total resistance decreases (Correct answer)
- Total resistance increases
- Total resistance stays the same
- Total resistance equals the largest resistor
Correct answer: Total resistance decreases
Parallel resistors provide multiple current paths, reducing total resistance below the smallest individual resistor.
Question 5: Which material is the best conductor of electricity among common wiring metals?
- Copper (Correct answer)
- Aluminum
- Iron
- Steel
Correct answer: Copper
Copper is one of the best electrical conductors among common materials, which is why it is widely used for wiring.
Question 6: What is the formula for electrical power?
- P = V × I (Correct answer)
- P = V / I
- P = I / V
- P = V + I
Correct answer: P = V × I
Electrical power (P) in watts equals voltage (V) in volts multiplied by current (I) in amperes.
EIAT and NEIEP Test FREE NEIEP Electrical Theory Questions and Answers 1
What does Ohm's Law state?