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WorksheetsQuiz-1
Total questions: 15
Worksheet time: 2mins
What is the charge of n type semiconductor?
Positive
Negative
Neutral
None of the above
A system is said to be defined as non causal, when
the output at the present depends on the input at an earlier time
the output at the present does not depend on the factor of time at all
the output at the present depends on the input at the current time
the output at the present depends on the input at a time instant in the future
All causal systems must have the component of
Memory
Time Invariance
Stability
Linearity
What is the total power consumption of this circuit?
25mW
250mW
2.5mW
2.5W
For generating a 1 KHz note, which one oscillator is most suitable?
Hartley
Colpits
Radio Frequency
Wein Bridge
472 on a capacitor represents:
4.7nF
472nF
47nF
472pF
Which logic gate is represented by the following combination of logic gates?
OR
NAND
AND
XOR
What about the stability of the system
Unstable
Stable
Stable at 0.4
Cannot say
The signal defined by the equations f(t) = 0 for t < 0, f(t) = E for 0 ≤ t ≤ a and f(t) = 0 for t > a is
Step function
Pulse function
Unit Impulse
Shifted step function
A box has 4 white and 3 red balls. Two balls are taken out in succession. What is the probability that both are white?
74
21
72
71
Double integration of a unit step function would lead to
An impulse
A parabola
A ramp
A doublet
If δ(t) denotes a unit impulse, Laplace transform of the function given here
1
s2
s
s−2
In the circuit of figure the function of resistor R and diode D are
To limit the current and to protect LED against over voltage
To limit the voltage and to protect LED against over current
To limit the current and protect LED against reverse breakdown voltage.
None of the above
The product kT (where k is Boltzmann's constant and T is absolute temperature) at room temperature is about
0.051eV
0.026eV
0.01eV
0.001eV
For the gate in the given figure the output will be
0
1
A
A
