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WorksheetsThink basic
Total questions: 20
Worksheet time: 7mins
Power dissippated in the resistor after 10 seconds is
equal in both the circuits
greater in the first circuit
greater in the second circuit
cannot be predicted
The depletion layer in the silicon diode is comprised of
Dopant atoms
silicon atoms
holes and electrons
none of the above
Noise in the electronic circuits is due to the
circuit elements
surroundings where the circuit is placed
loose connections
all of the above
For the given circuit
1.Real power=Apparent power
2.Apparent power=Reactive power
3.Real power=reactive power
4.both 1 and 2
The seif inductance of an inductor depends upon
1.Medium of the core
2.surrounding circuit elements
3.both 1 and 2
4.none of the above(self inductance is a constant)
In the given figure the diode is
forward biased
reverse biased
neither forward biased nor reverse biased
cannot be predicted
The output of the circuit is high for
Higher frequencies
Lower frequencies
Same at all frequencies
Depends upon the capacitance of the capacitor
An inveter
1.converts AC to DC
2.converts DC to AC
does both 1 and 2
none of the above
The output of the above circuit Vout is
1.steady DC voltage
2.AC voltage
3.Both 1 and 2
4.Pulsating DC voltage
In the given figure voltage across the capacitor is
5 volts
0
2.5 volts
25 volts
Three identical bulbs are connected as shown in the circuit.When the switch is disconnected from the circuit then bulb B1
glows brighter than before
glows less brighter than before
glows with the same intensity as before
bulb will not glow
Which is the most basic classification of the transistor
1.UJT and BJT
2.npn and pnp transistor
3.BJT and MOS transistor
4.none of the above
Which of the following property of a transistor forms the basis of a fire alarm circuit?
1.Diffusion current of the transistor increses with the increase in the temperature
2.drift current increases with the increase in the temperature
3.reverse leakage current increases with the increase in temperature
4.all of the above
Power factor is given by which of the following ratio?
Active power / Apparent power
Active power/Reactive power
Active power/real power
Apparent power/Active power
Kirchhoff's voltage law is another form of
1.conservation of energy
2.conservation of charges
3.conservation of mass
4.conservation of both charge and energy
Find the number of nodes in the given circuit
1
2
3
4
Statement 1:A diode offers dynamic resistance for the flow of AC
Sratement 2:Dynamic resistance of the diode is due to the change in the direction of the current flow
Statement 1 is true but statement 2 is not the correct explanation of 1.
statement 1 is true but statement 2 is the proper explanation of statement 2.
both the statements are false
sttement 2 is true but statement 1 is false
In a bridge rectifier the number of diodes which conduct at a time are
1
2
3
4
When two resistors are connected in parallel the equivalent resistance will be
1.lower than the least of the two
2.greater than the higher of the two
3.lower than the greater of the two and higher than the least of the two
4.greater than the lower of the two
The capacitance of a capacitor depends upon
1.charge on the capacitor
2.volatge across the plates
3.area of the plates
4.all of the above
