A neon glow lamp used as a night light ionizes at approximately
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A wire of one kilometre length has a resistance of 20 . If the length is halveda then the new resistance…
The presence of an electric current is made known by
A 0.09 microfarad capacitor is charged to 220 volts. How long in milliseconds will it discharged resistor…
Which of the following capacitors is suitable for dc filter circuits?
In a complex resistance-reactance planea XLis represented
What is the specific resistance of a pure silicon?
Which of the following is not a factor affecting capacitance oor?
Which of the following is neither a basic physical law nor deliverable from one?
A trigger circuit consisting of a capacitor of 0.01 F is connected in series with a resistor. If the…
A switch designed to have low capacitance between its terminal when open.
The average value of a triangular or sawtooth wave is _____ times its peak value.
Series resonance occurs when
Tungsten filament of bulbs has a hot resistance higher than its cold resistance due to its temperature…
If one resistance in a series connection is opena then
The impedance in the study of electronics is represented by resistan
In a complex number 5 + j 10a 10 is called ___ part.
Effects of capacitance
The capacitance of a capacitor is ___ relative permittivity.
In the 5-band method of capacitor color codinga the first band indicates
The electric field strength between capacitor plates has a unit
At what frequency will an inductor of 5mH have the same reactance as a capacitor of 0.1 F?
Which of the following dielectric materials makes the lowest-capacitance capacitor?
The graph between an alternating quantity and time is called
Property of an electric circuit that dissipates electric energy
Which of the following is also known as antiresonant circuit?
In adding or subtracting phasor quantitiesa ___ form is the most convenient.
VL= VCin a series RLCcircuit when
The internal resistance of an ideal current source is
A capacitor is used to
The factor 0.707for converting peak to rms applies only to
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