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Resistivity of semiconductors is around 100 Ω-m. | |
A. | TRUE [Wrong Answer] |
B. | FALSE [Correct Answer] |
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Explanation:-
Answer : B Discuss it below : !! OOPS Login [Click here] is required to post your answer/result |
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10.44
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⇒ When the circuit is switched on, the loop gain of a Wien bridge oscillator is
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⇒ In a 4 bit weighted resistor D/A converter, resistor value corresponding to LSB is 32 k ohm. The resistor value corresponding to MSB is
32 k ohm
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3 Ω
1.125 Ω
4.17 Ω
none
⇒ For an n-channel JEFT having drain source voltage constant if the gate source voltage is increased (more negative) pinch off would occur for
high values of drain current
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zero drain current
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⇒ The derating factor, for ambient temperature higher than specified, for a transistor is about
2.5 mW/°C
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en_{i}(μ_{p} - μ_{n})
en_{i}(μ_{p} + μ_{n})
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⇒ In a moving iron voltmeter the coil has a resistance of 20 Ω and an inductance of 0.3 H. The swamping resistance in 2000 Ω. To ensure correct reading with dc as well as 50 Hz ac, the value of capacitor to be connected in parallel with swamping resistance should be
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2097152 bits
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Coulomb's law
Electrostatic's theory
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50 V
82.8 V
100 V
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TRUE
FALSE
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Reason (R): Negative feedback is very commonly used in amplifier circuits
Both A and R are correct and R is correct explanation for A
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A is correct R is wrong
A is wrong R is correct
⇒ FM broadcast lies in which band?
HF
SHF
UHF
VHF
⇒ To draw ac equivalent circuit for a CE amplifier we should
Reduce all dc sources to zero
Short all capacitors
Reduce all dc sources to zero and short all capacitors
Reduce all dc sources to zero and open all capacitors
⇒ For measuring a very high resistance we should use
Kelvin's double bridge
Wheatstone bridge
Meggar
Either (a) or (c)
⇒ The current gain of a BJT is
g_{m} r_{0}
g_{m}/r_{0}
g_{m} r_{p}
g_{m}/r_{p}
⇒
Assertion (A): In digital communication data is coded prior to being transferred.
Reason (R): A number of codes for digital data processing are available.
Both A and R are correct and R is correct explanation of A
Both A and R are correct but R is not correct explanation of A
A is correct but R is wrong
A is wrong but R is correct
⇒ For a half wave rectified voltage, the form factor and peak factor respectively are
1.11 and 2
1.57 and 2
1.11 and 1.11
1.57 and 2
⇒
Assertion (A): Shunt of an ammeter has a low resistance.
Reason (R): Shunt may be connected in series or in parallel with ammeter.
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 R is false
A is false R is true
⇒ For a FM wave carrier modulating frequency is 10 kHz and bandwidth is 2 MHz. If the modulating signal amplitude is doubled, the bandwidth will be
0.5 MHz
1 MHz
2 MHz
4 MHz
⇒ The characteristic equation of flip-flop gives the next state Q_{N + 1} in terms of present state Q_{N} and the inputs. Which one of the following is the characteristic equation of J - K flip-flop?
Q_{N+1} = JQ_{N} + KQ_{N}
Q_{N+1} = J + KQ_{N}
Q_{N+1} = KQ_{N} + JQ_{N}
Q_{N+1} = K + JQ_{N}
⇒ What are the counting stages (Q_{1}, Q_{2}) for the counter shown in the figure be
11, 10, 00, 11, 10, ...
01, 10, 11, 00, 10, ...
00, 11, 01, 10, 00, ...
01, 10, 00, 01, 10, ...
⇒ If a sequence is causal then ROC is (where a is any number)
|z| > a
|z| < a
|z| = a
Entire Plane
⇒ The bunching action which occurs in multicavity klystron amplifier can be represented by Applegate diagram
TRUE
FALSE