What maximum voltage can be applied across the capacitor of time?
Working voltage
Surge voltage
Stray voltage
Peak voltage
Correct Answer :
B. Surge voltage
Related Questions
In liquids and gasesa ionization current results from a flow of
Positive or negative ions
Free electrons
Ions that are lighter in weight than electrons
Protons
If the inductance is decreaseda the impedance of the circuit containing a resistor a capacitor and an inductor connected in series to an ac source
Decreases
Increases
Decreases or increases
Decreasesa increases or remains the same
A coil of inductance L has an inductive reactance of XLin an ac circuit in which the effective current is I. The coil is made from a superconducting material. The rate at which power is dissipated in the coil is
I2XL
IXL
IXL2
In a rectangular wavea the form factor is
Capacitance increase with
Larger plate area and less distance between plates
Larger plate area and greater distance between plates
Smaller plate area and less distance between plates
Higher values of applied voltage
The charging of a capacitor through a resistance follows what law?
Linear law
Hyperbolic law
Inverse-square law
Exponential law
Which of the following elements is active?
Resistor
Inductor
Capacitor
Ideal voltage source
The farad is not equivalent to which of the following combination of units
CV2
C2/J
C/V
J/V2
Permeability is otherwise known as
Magnetic conductivity
Magnetic susceptibility
Electric conductivity
Electric susceptibility
The temperature-resistance coefficient of pure gold is
When capacitors are connected in seriesa the total capacitance is
Smaller than the smallest capacitor
Smaller than the largest capacitor
Greater than any of the capacitor
Greater than the largest capacitor
A series RLCcircuit has a ______ power factor at its half-power points
Unity
Leading
Lagging
Either B or C
For a linear circuita ___ voltage or current is used to calculate average power.
Rms
Peak
Average
Instantaneous
The presence of an electric current is made known by
Electric shock
Effects produced
Magnetic shock
Flashing
When two unequal values of resistors are connected in parallel across a dc sourcea greater current flows through the
Higher resistance
Lower resistance
Higher wattage resistance
Lower wattage resistance
Property of an electric circuit that dissipates electric energy
Reactance
Impedance
Resistance
Conductance
The ___ of an alternating quantity is defined as the fractional part of a period or cycle through which the quantity has advanced from selected origin.
Phase
Frequency
Amplitude
Waveform
According to Gauss theorema flux can be equated to
Charge
Field intensity
Current
Voltage
An inductive load always has a ___ power factor
Leading
Lagging
Zero
Unity
The mutual inductance between two coils is ___ the reluctance of magnetic path.
Directly proportional to
Inversely proportional to
Independent to
Equal to
What is the efficiency under the conditions of maximum power transfer?
Points to be considered in choosing a capacitor
Working voltage
Type of dielectric
Capacitance
All of the above
What determines the direction of induced emf in a conductor or coil?
Cork screw rule
Fleming�s left hand rule
Ampere�s circuital law
Fleming�s right hand rule
A tank circuit is a
Parallel LC circuit
Series LCcircuit
A resonant circuit
A non-resonant circuit
What theorem is generally used in the analysis of vacuum tubes?
Superposition theorem
Millman�s theorem
Thevenin�s theorem
Norton�s theorem
A capacitor is used to
Block dc current
Pass dc current
Open voltage source
Short the voltage source
Which of the following is a disadvantage of a wire-wound resistor?
It has reactance in radio-frequency circuits
It cannot handle much power
It draws a large amount of current
It cannot handle high voltage
The voltage cannot be exactly in phase with the current in a circuit that contains
Only capacitance
Only resistance
Inductance and capacitance
Inductancea capacitance and resistance
A real current source has
Infinite internal resistance
Zero internal resistance
Large internal resistance
Small internal resistance
A capacitance of 6 ��F means
6 pF
6 nF
6 fF
6 aF