Related Questions
What is the correct answer?
4
What does a capacitor store?
What is the correct answer?
4
The graph between an alternating quantity and time is called
What is the correct answer?
4
VL= VCin a series RLCcircuit when
A. The value of the impedance is minimum
B. The power factor is zero
C. The current leads the total voltage by 90�
D. The total voltage is zero
What is the correct answer?
4
What capacitance exists not through design but simply because two conducting surfaces are relatively close to each other?
What is the correct answer?
4
A series RLCcircuit has a ______ power factor at its half-power points
What is the correct answer?
4
A capacitor consists of two
C. Conductors separated by a dielectric
D. Dielectric separated by a conductor
What is the correct answer?
4
What is the total resistance of a two equal valued resistors in series?
A. The difference of both
D. The sum of their reciprocals
What is the correct answer?
4
A 0.09 microfarad capacitor is charged to 220 volts. How long in milliseconds will it discharged resistor has a resistance of 20a000 ohms?
What is the correct answer?
4
Which of the following is a disadvantage of a wire-wound resistor?
A. It has reactance in radio-frequency circuits
B. It cannot handle much power
C. It draws a large amount of current
D. It cannot handle high voltage
What is the correct answer?
4
Which of the statements below is not true?
A. Current source is an active element
B. Resistor is a linear element
C. Voltage source is a passive element
D. Diode is a non-linear element
What is the correct answer?
4
In an ac circuit with a resistive branch and an inductive branch in parallela the
A. Voltage across the inductance leads the voltage across the resistance by 90°
B. Resistive branch current is 90° out of phase with the inductive branch current
C. Resistive and inductive branch currents have the same phase
D. Resistive and inductive branch currents are 180° outof-phase
What is the correct answer?
4
When two complex conjugates are subtracteda the result is a
A. Quadrature component only
What is the correct answer?
4
The charge in the capacitor is stored at the
What is the correct answer?
4
In a rectangular wavea the form factor is
What is the correct answer?
4
A capacitor is used to
D. Short the voltage source
What is the correct answer?
4
Which waveform in which the rms value and the mean value are equal?
What is the correct answer?
4
If two equal resistances connected in series across a certain supply are now connected in parallel across the same supplya the power produced will be _____ that of series connection
What is the correct answer?
4
In a circuita an active element is one which
C. Both supplies and receives energy
What is the correct answer?
4
The admittance of a parallel RLC circuit is found to be the ___ sum of conductance and susceptances.
What is the correct answer?
4
What is the purpose of a load in an electric circuit?
A. To increase the circuit current
B. To decrease the circuit current
C. To utilize electrical energy
D. To make the circuit complete
What is the correct answer?
4
In dividing or multiplying phasor quantitiesa ___ form is used.
What is the correct answer?
4
A capacitance of 0.05 F equals
What is the correct answer?
4
A capacitor requires 12 C of charge to raise its potential of 3 V. What is the capacitance of the capacitor?
What is the correct answer?
4
Norton�s theorem is what form of an ac equivalent circuit?
C. Both voltage and current
D. Neither voltage nor current
What is the correct answer?
4
Which is considered as the effect of a dielectric material?
A. Increasing capacitance
B. Decreasing capacitance
C. Reducing the working voltage
D. Increasing the distance between the plates
What is the correct answer?
4
And ideal current source has an internal conductance of _____ siem
What is the correct answer?
4
Liquids that are good conductors because of ionization are called
What is the correct answer?
4
What is the half-power bandwidth of a parallel resonant circuit which has a resonant frequency of 3.6 MHz and Q of 218?
What is the correct answer?
4
When capacitors are connected in seriesa the total capacitance is
A. Smaller than the smallest capacitor
B. Smaller than the largest capacitor
C. Greater than any of the capacitor
D. Greater than the largest capacitor
What is the correct answer?
4
Under the conditions of maximum power transfera a voltage source is delivering a power of 15 W to the load. What is the power generated by the source?