Basic Electrical Engineering

Question 1

is an interconnection of electrical elements.

Answer 1

electric circuit

Question 2

can deliver a non-zero average power indefinitely.

Answer 2

Active circuit elements

Question 3

There are four types of active circuit element, and all of them are termed an
ideal source. They are:

Answer 3

Independent voltage source

Independent current source

Dependent voltage source

Dependent current source

Question 4

supply a

constant voltage that does not depend on any other quantity within the circuit.

Answer 4

Independent voltage source

Question 5

supply a

constant current that does not depend on any other quantity within the circuit

Answer 5

Independent current source

Question 6

is a voltage
source whose value depends on a voltage or a current of an element
elsewhere in the network.

Answer 6

Dependent voltage source

Question 7

is a current
source whose value depends on a voltage or a current of an element
elsewhere in the network.

Answer 7

Dependent current source

Question 8

cannot deliver a non-zero average power

indefinitely.

Answer 8

Passive circuit elements

Question 9

is an electrical component that limits or regulates the

flow of electrical current in an electronic circuit.

Answer 9

Resistor

Question 10

– An inductor is a passive element designed to store energy in its
magnetic field. It consists of a coil of conducting wire.

Answer 10

Inductor

Question 11

A capacitor is a passive element designed to store energy in 
its electric field. It consists of two or more conducting plates separated by 
an insulator (or dielectric).

Answer 11

Capacitor

Question 12

it is an electrical property of the atomic particles of which
matter consists, measured in coulombs (C).

Answer 12

Charge

Question 13

unit of electrical charge which is equivalent to 6.25 x 1018
electrons or protons. Named after the French physicist, Charles A.
Coulomb

Answer 13

Coulomb (C)

Question 14

unit of charge flow equal to one coulomb of charge

pass a point in one second.

Answer 14

Electric Current (A)

Question 15

unit of potential difference, which is equal to one joule of work
done per one coulomb of charge.

Answer 15

Volt (V)

Question 16

the capability of doing work. Any charge has the capability of
doing work by moving another charge either by attraction or repulsion.

Answer 16

Potential

Question 17

practical unit of resistance.

Answer 17

Ohm (Ω)

Question 18

a measure of the material’s ability to conduct electric

current. It is equal to the reciprocal of resistance.

Answer 18

Conductance

Question 19

unit of conductance.

Answer 19

Siemens (formerly mho)

Question 20

an instrument used for measuring electric potential difference
between two points in an electric circuit.

Answer 20

Voltmeter

Question 21

is a measuring instrument used to measure

the current in a circuit.

Answer 21

Ammeter or ampere meter

Question 22

an instrument for measuring electric power (or the supply rate
of electrical energy) in watts of any given circuit.

Answer 22

Wattmeter