Electrical Trivia Quiz Questions
Electricity is energy caused by the flow of what?
A: electric charge.
Early capacitors were also known as what?
In modern homes current is often described as being either direct current (DC) or what?
A: Alternating current (AC).
Many inductors have a magnetic core made of iron or ferrite inside the coil that increases the magnetic field and thus the what of the coil?
The resistor is one of the simplest of passive circuit elements and it resists the
flow of current through it, dissipating its energy as what?
The ohm, the unit of resistance, was named in honor of whom?
A: George Ohm.
The ohm is symbolized by what Greek letter?
A: The Greek letter Ω.
1 Ω is the resistance that will produce a potential difference of one volt in response to
how much current?
A: One amp.
By convention, the charge carried by electrons is deemed negative, and that by protons is deemed what?
The first ever solid-state electronic device was the "cat's whisker"
detector, first used in the 1930s in what type of equipment?
A: Radio receivers.
A passive two-terminal electrical component that produces electrical resistance in a circuit is called what?
A: A resistor.
Dutch physicist Pieter van Musschenbroek invented a capacitor, and named it after the University
of Leiden where he worked. What did he name it?
A: The Leyden Jar.
What famous scientist introduced the concept of the electric field?
A: Michael Faraday.
The voltage of a large what may be as high as 100 million volts and have discharge energies
as great as 250 kWh?
A: Lightning strike.
The current through a resistor is in direct proportion to the what across the resistor's terminals?
An electric fish is a fish that can generate a what?
A: Electric field.
Alternating current is any current that reverses what repeatedly?
A capacitor consists of two conductors separated by a non-conductive region called the what?
A fish that can generate electric fields is said to be electrogenic while
a fish that has the ability to detect electric fields is said to be what?
What is created by a charged body in the space that surrounds it?
A: An electric field.
Capacitors are widely used in electronic circuits for blocking what, while allowing alternating
current to pass?
A: Direct current.
All capacitors contain at least two electrical conductors separated by a what?
A: Insulator or dielectric.
In a capacitor energy is stored in what?
A: The electrostatic field.
The study of electric fields created by stationary charges is called what?
Most electrogenic fish are also what?
The reciprocal of resistance R is called what?