Electrical Trivia Quiz Questions
Electricity is energy caused by the flow of what?
A: electric charge.
Early capacitors were also known as what?
A: Condensers.
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?
A: Inductance.
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?
A: Heat.
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?
A: Positive.
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.
Long before any knowledge of electricity existed
people were aware of shocks from what
type of animal?
A: Electric Fish.
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?
A: Voltage.
An electric fish is a fish that can generate a what?
A: Electric field.
Alternating current is any current that reverses what repeatedly?
A: Direction.
A capacitor consists of two conductors separated by a non-conductive region called the what?
A: Dielectric.
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?
A: Electroreceptive.
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?
A: Electrostatics.
Most electrogenic fish are also what?
A: Electroreceptive.
The reciprocal of resistance R is called what?
A: Conductance.
