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Assertion (A): A transistor has lower voltage drop during conduction as compared to thyristor Reason (R): Transistors are manufactured in very high voltage and current ratings. | |
A. | Both A and R are correct and R is correct explanation of A [Wrong Answer] |
B. | Both A and R correct but R is not correct explanation of A [Wrong Answer] |
C. | A is correct but R is wrong [Correct Answer] |
D. | A is wrong but R is correct [Wrong Answer] |
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Explanation:-
Answer : C Discuss it below : !! OOPS Login [Click here] is required to post your answer/result |
Also Read Similar Questions Below :
⇒ In the human eye, an image persists for a time of about
1 second
0.1 second
0.05 second
0.02 second
⇒ Colour picture tube needs higher anode voltage and needs larger beam and cathode currents than monochrome tube because
it is bigger in size
it has higher level of illumination
the tube has to illuminate three phosphors simultaneously
the tube has lower efficiency because of aperture mask
⇒ Consider the following galvanometers
1 and 2 only
1, 2 and 3
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1 and 3 only
⇒ In a JK Master slave flip flop
both master and slave are positively clocked
both master and slave are negatively clocked
master is positively clocked and slave is negatively clocked
master is negatively clocked and slave is positively clocked
⇒ For a symmetrical network
h_{11} = h_{22}
h_{12} = h_{21}
h_{11} h_{22} - h_{12} h_{21} = 0
h_{11} h_{22} - h_{12} h_{21} = 1
⇒ The circuit of the given figure perf
OR function
AND function
exclusive OR function
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⇒ X and Y are two random variable and Z = X + Y. Let σ_{x}^{2}, σ_{y}^{2} and σ_{z}^{2} be variance of X, Y and Z. Then
σ_{z}^{2} = σ_{x}^{2} + σ_{y}^{2}
σ_{z}^{2} ≤ σ_{x}^{2} + σ_{y}^{2}
σ_{z}^{2} < σ_{x}^{2} + σ_{y}^{2}
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⇒ A voltage v(t) which is a gaussian ergodic random process witha mean of zero and a varance of 4 volt^{2} is measured by a meter which first square and then reads its dc component. The reading will be
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⇒ In a conductor which of the following relations hold good?
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⇒ Colour picture tube needs higher anode voltage and needs larger beam and cathode currents than monochrome tube because
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1 and 2 only
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1 and 3 only
⇒ In a JK Master slave flip flop
both master and slave are positively clocked
both master and slave are negatively clocked
master is positively clocked and slave is negatively clocked
master is negatively clocked and slave is positively clocked
⇒ For a symmetrical network
h_{11} = h_{22}
h_{12} = h_{21}
h_{11} h_{22} - h_{12} h_{21} = 0
h_{11} h_{22} - h_{12} h_{21} = 1
⇒ The circuit of the given figure perf
OR function
AND function
exclusive OR function
exclusive NOR function
⇒ X and Y are two random variable and Z = X + Y. Let σ_{x}^{2}, σ_{y}^{2} and σ_{z}^{2} be variance of X, Y and Z. Then
σ_{z}^{2} = σ_{x}^{2} + σ_{y}^{2}
σ_{z}^{2} ≤ σ_{x}^{2} + σ_{y}^{2}
σ_{z}^{2} < σ_{x}^{2} + σ_{y}^{2}
σ_{z}^{2} > σ_{x}^{2} + σ_{y}^{2}
⇒ A voltage v(t) which is a gaussian ergodic random process witha mean of zero and a varance of 4 volt^{2} is measured by a meter which first square and then reads its dc component. The reading will be
0
4
16
2
⇒ DS directive in 8085
forces the assembler to reserve one byte of memory
forces the assembler to reserve a specified number of bytes in the memory
forces the assembler to reserve a specified number of consecutive bytes in the memory
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Assertion (A): The resistivity of intrinsic semiconductor decreases with increase in temperature.
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Both A and R are true and R is correct explanation of A
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A is true but R is false
A is false but R is true
⇒ A stationary process has
all statistical properties independent of time
all statistical properties dependent of time
zero variance
ensemble average equal to time average
⇒ The fourier transform of a voltage signal x(t) is X(f). The unit of X(f) is __________ .
volts
volt^{2}
volt/sec
volt-sec
⇒ In Quine-Mclusky method of Boolean function reduction; __________ , are treated as __________ and therefore discrepancies may occur in the final solution, therefore this method is not applicable to the functions with __________ .
zeros, don't care conditions, zeros
one's, don't care conditions, one's
don't care conditions, zeros, don't care conditions
don't care conditions, don't care conditions, don't care conditions
⇒ In a J-K flip flop the input J = K = 1 pulse is about
set
reset
no change
toggle
⇒ How many interrupts are there of 8085 μP?
4
5
6
8
⇒ An arithmetic statement in C must be
integer mode arithmetic statement
real mode arithmetic statement
mixed mode arithmetic statement
any of the above
⇒ A pure tone at 1000 Hz has a dB level of 50 dB. If two such tones exist simultaneously the dB level is about
50 dB
53 dB
100 dB
200 dB
⇒ The function f(x - v_{ot}) represent which of the following?
A stationary wave
A wave motion in forward direction
A wave motion in reverse direction
None of the above
⇒
Assertion (A): In liquids and glassy substances, dielectric losses occur.
Reason (R): The orientation polarization in many substances is frequency dependent.
Both A and R are true and R is correct explanation of A
Both A and R are true but R is not correct explanation of A
A is true but R is false
A is false but R is true
⇒ In 8 cavity magnetron the p mode corresponds to a total phase shift equal to
± 8 p radians around the periphery
± 4 p radians around the periphery
± 2 p radians around the periphery
± 16 p radians around the periphery
⇒ For an n-channel enhancement type MOSFET, if the source is connected at a higher potential than that of the bulk (V_{SB} > 0), the threshold voltage V_{T} of the MOSFET will
remain unchanged
decrease
change Polarity
increase
⇒ Double integration of unit step function leads to
an impulse
a parabola
a ramp
a doublet
⇒ Norton's theorem reduces a two terminal network to
a constant current source and an impedance is parallel
a constant current source and an impedance in series
a constant voltage source and an impedance in parallel
a constant voltage source and an impedance in series
⇒ In the basic series inverter circuit, the source current has
low harmonic content
high harmonic content
low or high harmonic content depending on firing angle
zero harmonic content
⇒ If A = 3 + j1 and B = 4 + j3, A - B =
8.062 ∠29.7°
10 ∠45°
2.236 ∠243.43°
6.72 ∠243.43°
⇒ A narrow band noise show
AM only
AM and FM
FM
PCM
⇒ In a CE amplifier the ac emitter resistance
is zero
is high
is very high
may have any value
⇒ Hay bridge is suitable for measuring inductance of which one of the following inductors?
Having Q value less than 10
Having Q value greater than 10
Having any value of Q
Having phase angle of reactance very large
⇒ A wire has a resistance R ohm. If another wire of the same material and same weight has double the diameter (as compared to the first wire), the resistance of the second wire will be
0.5 R
0.25 R
0.125 R
R/16
⇒ In a conductor which of the following relations hold good?
∇ x D = r
∇ . D = r
∇ x D = 0
∇ . D = 0