Symbols

Question 1

𝛼

Answer 1

temperature coefficient of resistance

Question 2

𝛽

Answer 2

bipolar transistor DC gain

Question 3

𝜀

Answer 3

permittivity

Question 4

𝜀₀

Answer 4

absolute permittivity; permittivity of free space

Question 5

𝜀ᵣ

Answer 5

relative permittivity

Question 6

𝜇ᵣ

Answer 6

relative permeability

Question 7

𝜇₀

Answer 7

permeability of free space

Question 8

𝜇

Answer 8

permeability

Question 9

𝜁

Answer 9

damping factor

Question 10

𝜌

Answer 10

resistivity of a material

Question 11

𝜎

Answer 11

conductivity of a material

Question 12

𝐓

Answer 12

time constant

Question 13

𝜑

Answer 13

phase difference

Question 14

𝞥

Answer 14

magnetic flux

Question 15

𝝎

Answer 15

angular frequency of a sine wave

Question 16

𝝎₀

Answer 16

angular centre, corner or resonant frequency of a filter

Question 17

𝝎c

Answer 17

angular cut off frequency

Question 18

𝝎ₙ

Answer 18

undamped natural frequency

Question 19

𝐴ᵢ

Answer 19

current gain

Question 20

𝐴ₚ

Answer 20

power gain

Question 21

𝐴ᵥ

Answer 21

voltage gain

Question 22

𝐵

Answer 22

bandwidth, magnetic flux density

Question 23

𝐶

Answer 23

capacitance

Question 24

𝐷

Answer 24

electric flux density

Question 25

𝑒

Answer 25

electronic charge

Question 26

𝐸

Answer 26

electric field strength

Question 27

𝐸ₘ

Answer 27

dielectric strength

Question 28

𝐹

Answer 28

magnetomotive force

Question 29

𝑓₀

Answer 29

centre, corner or resonant frequency of a filter

Question 30

𝑓c

Answer 30

cutoff frequency

Question 31

𝑓ₜ

Answer 31

transition frequency

Question 32

𝐺

Answer 32

overall gain

Question 33

𝑔ₘ

Answer 33

transconductance

Question 34

𝐻

Answer 34

magnetic field strength

Question 35

ℎFE

Answer 35

bipolar transistor DC gain in common-emitter configuration

Question 36

ℎfe

Answer 36

bipolar transistor small-signal current gain in common-emitter configuration

Question 37

𝐼

Answer 37

current

Question 38

𝑖

Answer 38

small-signal current

Question 39

𝑘

Answer 39

Boltzmann’s constant

Question 40

𝐿

Answer 40

inductance

Question 41

𝑀

Answer 41

mutual inductance

Question 42

𝑄

Answer 42

quality factor, reactive power

Question 43

𝑞

Answer 43

charge

Question 44

𝑅

Answer 44

resistance

Question 45

𝑆

Answer 45

apparent power, reactance

Question 46

𝑇

Answer 46

absolute temperature, period of a repetitive waveform

Question 47

𝑉

Answer 47

voltage

Question 48

𝑣

Answer 48

small-signal voltage

Question 49

𝑋

Answer 49

reactance

Question 50

𝑍

Answer 50

impedance

Question 51

𝜓

Answer 51

electric flux