Question is ⇒ The main use of JFET with a, Options are ⇒ (A) frequency mixer, (B) source follower, (C) voltage doubler, (D) trigger, (E) , Leave your comments or Download question paper.

Question is ⇒ The main use of JFET with a, Options are ⇒ (A) frequency mixer, (B) source follower, (C) voltage doubler, (D) trigger, (E) , Leave your comments or Download question paper. Previous question Next question


Q1.	The main use of JFET with a
A.	frequency mixer [Wrong Answer]
B.	source follower [Correct Answer]
C.	voltage doubler [Wrong Answer]
D.	trigger [Wrong Answer]
View Answer 1 -1 Explanation:- Answer : B Discuss it below : !! OOPS Login [Click here] is required to post your answer/result Help other students, write article, leave your comments

Previous question Next question

Also Read Similar Questions Below :

⇒ A diode can have a very high forward resistance.
TRUE
FALSE

⇒ A series R-L circuit has R = 1 Ω and L = 1 H. It is excited by a V battery at t = 0. The steady state condition is reached at
t = 1 s
t = 0.1 s
t = 0 s
t = ∞

⇒ A single phase electric heater uses phase controlled thyristors. The firing angle is 90°. The degree of heating is
25% of maximum
50% of maximum
75% of maximum
none of the above

⇒ Which of the following microphones works on the principle of Faraday's law?
Carbon
Condenser
Moving coil
Electret

⇒ Schering bridge is used to measure
capacitance and dielectric loss
inductance
resistance
mutual inductance

⇒ A two port network is reciprocal if and only if
Z₁₁ = Z₂₂
BC - AD = - 1
Y₁₂ = Y₂₁
h₁₂ = h₂₁

⇒

Match the following:

	List I		List II
A.	SSB Modulation	1.	Transmission line
B.	Δ . B = 0	2.	Hilbert transform
C.	Model dispersion	3.	Faraday's law
		4.	Absence of magnetic monopoles
		5.	Waveguides
		6.	Phase locked loop

A-1, B-3, C-5
A-5, B-4, C-2
A-6, B-4, C-5
A-2, B-4, C-5

⇒ The region between a pin of parallel perfectly conducting planes of infinite extent is y and z directions is partially filled with a dielectric as shown be
-2
2
0
1

⇒ Full duplex operation
requires modems at both ends of circuit
requires two pairs of cables
can transfer data in both directions simultaneously
all of the above

⇒

Assertion (A): In SSB, carrier is suppressed by about 45 dB

Reason (R): SSB is standard form for radio communication

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

⇒ We can know the arrangement of atom in a material by studying electron diffraction pattern.
TRUE
FALSE

⇒ The equivalent inductance seen at terminals A -
14 H
20 H
10 H
4 H

⇒ In a bipolar transistor which current is smallest
collector current
base current
emitter current
any of the three currents

⇒ Auto correlation for t = 0 is equal to
average power S of waveform
square of average power S of waveform
half of average power S of waveform
square root of average power S of waveform

⇒ Effective Q of the equivalent electrical circuit of quartz crystal is of the order of
200
2000
20000
200000

⇒ The core of an atom consists of
nucleus
nucleus and all orbits
nucleus and inner orbits
none of the above

⇒ The early effect in a BJT is caused by
fast turn on
fast turn off
large collector base reverse bias
large emitter base forward bias

⇒ The units of transistor h parameters h₁₁ and h₂₂ are the same.
TRUE
FALSE

⇒ The time constant of a series RL circuit is
LR
L/R
R/L
e^-R/L

⇒ The circuit shown in the figure is tha
non-inverting amplifier
Inverting amplifier
an oscillator
Schmitt trigger

⇒ In a clocked latch, clock drives
R NAND gate
S NAND gate
both R and S NAND gates
either R or S NAND gates

⇒ A rectangular waveguide, in dominant TE mode, has dimensions 10 cm x 15 cm. The cut off frequency is
10 GHz
1 GHz
15 GHz
25 GHz

⇒ The number of variables in a function is odd and the number of minterms with even number of 0's are same as the number of minterms with odd number at 1's, the expression formed can be represented in __________ as well as __________ form.
Ex - OR, NOR
Equivalence, Ex - OR
AND, Coincidence
OR, Ex - OR

⇒

Assertion (A): Mnemonics are used in assembly level program.

Reason (R): Computer cannot understand mnemonics.

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 R is wrong
A is wrong R is correct

⇒

Match the following:

	List I		List II
A.	True type	1.	Type of calculator in window
B.	FIND	2.	Window command
C.	WORD PAD	3.	Name of a Font
D.	STANDARD	4.	Has many features of a simple word processor

A-1, B-2, C-3, D-4
A-4, B-3, C-2, D-1
A-3, B-2, C-1, D-4
A-3, B-2, C-4, D-1

⇒ A moving coil instrument has a resistance of 0.5 Ω and a full scale deflection of 0.1 A. To convert it into an ammeter of 0-10 A the shunt resistance should be
0.004 Ω
0.005 Ω
0.05 Ω
0.1 Ω

⇒ In a three phase to single phase full wave bridge cycloconverter, the number of thyristors is
36
18
12
8

⇒ The number of protons in a silicon atom is
32
28
14
4

⇒ Paper capacitors are used in power supplies for filtering.
TRUE
FALSE

⇒ In a series ac circuit a voltage of 20 V at 25 Hz causes a current of 0.20 A, while the same voltage at 75 Hz causes a current of 0.12 A. The circuit consists of
R and C in parallel
R and C in series
R and L in series
either (a) or (b)