The impedance in the study of electronics is represented by resistance and
Ainductance
Bcapacitance
Cinductance and capacitance
Dreactance
#202
Loop currents should be assumed to flow in which direction?
Astraight
Bclockwise
Ccounter-clockwise
Deither b or c arbitrarily selected
#203
The reason why electrical appliances are connected in parallel.
AIt is a simple circuit
Bthis makes the operation of appliances independent of each other
Cthis results in reduced power consumption
Dall of them
#204
Which of the following does not affect resistance?
Aresistivity
Bcross-sectional area
Cmass
Dlength
#205
"Any resistance R in a branch of network in which a current I is flowing can be replaced by a voltage equal to IR." This states
Acompensation theorem
Breciprocity theorem
CMillman's theorem
Dsuperposition theorem
#206
What dielectric is generally employed by a variable capacitor?
Amica
Bair
Celectrolyte
Dceramic
#207
A switch designed to have low capacitance between its terminal when open.
ALOCAP switch
BAntiLOCAP switch
CAnticapacitance switch
Dcapacitance switch
#208
A resistor wound with a wire doubled back on itself to reduce the inductance.
Abifilar resistor
Bwire-wound resistor
Canti-inductive resistor
Dbleeder resistor
#209
_____ is a fusion of elements, without chemical action between them.
Amixture
Bcompound
Calloy
Dionization
#210
In calculating maximum instantaneous power _____ voltage or current is used.
Apeak
Baverage
Crms
Dinstantaneous
#211
The area of capacitor plates increases two times, then its capacitance
Aincreases two times
Bincreases four times
Cdecreases two times
Ddecreases four times
#212
If the inductance is decreased, the impedance of the circuit containing a resistor, a capacitor and an inductor connected in series to an ac source
Adecreases
Bincreases
Cdecreases or increases
Ddecreases, increases or remains the same
#213
When the movable plates of a gang capacitor completely overlaps the fixed plates, the capacitance of the capacitor is
Ahalfway between the maximum and the minimum
Bmaximum
Cminimum
Dzero
#214
In a circuit, a passive element is one which
Asupplies energy
Breceives energy
Cboth supplies and receives energy
Dattenuates signal
#215
Rationalizing the denominator of a complex number means
Aeliminating the j component in the denominator
Badding j component in the denominator
Celiminating the j component in the numerator
Dadding the j component in the numerator
#216
When two complex conjugates are subtracted, the result is a
Aquadrature component only
Bcomplex component
Cin-phase component
Dreal component
#217
A coil of inductance L has an inductive reactance of Xl in an ac circuit in which the effective current is I. The coil is made from a superconducting material. The rate at which the power is dissipated in the coil is
A0
BI^2 * Xl
CI * Xl
DI * Xl^2
#218
A trimmer is a variable capacitor in which capacitance is varied by changing the
Anumber of plates
Bdielectric
Cdistance between the plates
Dplate area
#219
The reason why electrical appliances are not connected in series.
Agreater electrical power saving
Bpower loss is minimum
Cappliances have different current ratings
Dall of them
#220
From its definition, the unit of electric field, E is the N/C and the equivalent of E is the