Electricity Exam: Trivia Questions! Quiz

50 Questions | By Vanrhoads | Last updated: Aug 4, 2020 | Total Attempts: 1992

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Electricity Exam: Trivia Questions! Quiz

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Questions and Answers

1.

In a wave, the number of oscillations per second is its
- A.
  
  Voltage
- B.
  
  Spectrum
- C.
  
  Wavelength
- D.
  
  Frequency
2.

The distance covered by one complete wave (or one complete cycle) is called
- A.
  
  Voltage
- B.
  
  Capacitance
- C.
  
  Wavelength
- D.
  
  Frequency
3.

Frequency is
- A.
  
  The number of oscillations per second
- B.
  
  Measured in Hertz
- C.
  
  An indicator of how rapidly current is changing
- D.
  
  All of the above
- E.
  
  None of the above
4.

The unit for #times/sec is
- A.
  
  Hertz
- B.
  
  Amps
- C.
  
  Volts
- D.
  
  Ohms
5.

A transverse wave is a wave that travels
- A.
  
  Parallel to another wave
- B.
  
  Perpendicularly to another wave
- C.
  
  Faster than another wave
- D.
  
  Slower than another wave
6.

Current flowing in only one direction is
- A.
  
  Unpredictable Current (UC)
- B.
  
  Alternating Current (AC)
- C.
  
  Direct Current (DC)
- D.
  
  Detectable Current (DC)
7.

In the electromagnetic spectrum, which waveform has the shortest wavelength?
- A.
  
  Gamma Rays
- B.
  
  X-Rays
- C.
  
  Ultraviolet Light
- D.
  
  Infrared Light
- E.
  
  Radio Waves
8.

In the electromagnetic spectrum, which waveform has the longest wavelength?
- A.
  
  Gamma Rays
- B.
  
  X-Rays
- C.
  
  Visible Light
- D.
  
  Microwaves
- E.
  
  Radio Waves
9.

All types of electromagnetic waves have the same frequency.
- A.
  
  True
- B.
  
  False
10.

In electromagnetic waves, an electric wave moves perpendicularly to a magnetic wave.
- A.
  
  True
- B.
  
  False
11.

In the electromagnetic spectrum, put these waveforms in order from most rapid (highest frequency) to slowest (lowest frequency): radio waves, infrared, microwave, gamma rays, x-rays, ultraviolet light, visible light.
- A.
  
  Radio, infrared, x-ray, gamma, ultraviolet, visible light, microwave
- B.
  
  Gamma, radio, ultraviolet, visible light, microwave, x-ray, infrared
- C.
  
  Gamma, x-ray, ultraviolet, visible light, infrared, microwave, radio
- D.
  
  Radio, microwave, infrared, visible light, ultraviolet, x-ray, gamma
- E.
  
  None of these -- they all have the same frequency
12.

Humans can see gamma rays with their eyeballs.
- A.
  
  True
- B.
  
  False
13.

Oscillating current is called
- A.
  
  Direct Current (DC)
- B.
  
  Alternating Current (AC)
- C.
  
  Annoying Current (AC)
- D.
  
  Disorganized Current (DC
14.

The current in our wall outlets and light sockets is

Discuss
- A.
  
  AC
- B.
  
  DC
- C.
  
  60 Hz
- D.
  
  A and C
- E.
  
  B and C
15.

A capacitor is a circuit component that consists of two parallel plates of charge.
- A.
  
  True
- B.
  
  False
16.

When is this equation used? R_EQ = R₁ + R₂
- A.
  
  When two resistors are connected in parallel
- B.
  
  When two resistors are connected in series
- C.
  
  When two batteries are connected in parallel
- D.
  
  When two capacitors are connected in series
17.

When is this equation used? 1/R_EQ = 1/R₁ + 1/R₂
- A.
  
  When two resistors are connected in parallel
- B.
  
  When two resistors are connected in series
- C.
  
  When two batteries are connected in parallel
- D.
  
  When two capacitors are connected in series
18.

In this circuit diagram, where will most of the current flow and why?
- A.
  
  It will flow through the 2 Ohm resistor because it follows the path of least resistance.
- B.
  
  It will flow through the 10 Ohm resistor because it follows the first path it reaches.
- C.
  
  It will flow through the 50 Ohm reisitor because it follows the path of greatest resistance.
19.

Find R_EQ for this circuit.
- A.
  
  50/3 Ohms
- B.
  
  3/50 Ohms
- C.
  
  120 Ohms
- D.
  
  1/120 Ohms
20.

Find R_EQ for this circuit.
- A.
  
  15/26 KΩ
- B.
  
  6.5 KΩ
- C.
  
  26/15 KΩ
- D.
  
  7.5 KΩ
21.

Calculate the current (I) in this circuit if the battery is 1.5 Volts.

Discuss
- A.
  
  4,333 Amps
- B.
  
  4.333 Amps
- C.
  
  230 Amps
- D.
  
  0.23 Amps
22.

What are these?
- A.
  
  Resistors
- B.
  
  Capacitors
- C.
  
  Batteries
- D.
  
  Lightbulbs
- E.
  
  Transformers
23.

What do the stripes indicate?
- A.
  
  Amount of voltage
- B.
  
  Amount of current
- C.
  
  Amount of resistance
- D.
  
  Amount of energy
- E.
  
  Amount of power
24.

What is the unit for voltage?
- A.
  
  Ampere
- B.
  
  Joule
- C.
  
  Volt
- D.
  
  Hertz
- E.
  
  Ohm
25.

What is the unit for current?
- A.
  
  Ampere
- B.
  
  Joule
- C.
  
  Volt
- D.
  
  Hertz
- E.
  
  Ohm

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