Question is ⇒ In a voltage regulator circuit using zener diode the load voltage is nearly constant only if, Options are ⇒ (A) zener current is very small, (B) zener current is very large, (C) zener current is neither small nor large, (D) None of the above, (E) , Leave your comments or Download question paper.

Question is ⇒ In a voltage regulator circuit using zener diode the load voltage is nearly constant only if, Options are ⇒ (A) zener current is very small, (B) zener current is very large, (C) zener current is neither small nor large, (D) None of the above, (E) , Leave your comments or Download question paper. Previous question Next question


Q1.	In a voltage regulator circuit using zener diode the load voltage is nearly constant only if
A.	zener current is very small [Correct Answer]
B.	zener current is very large [Wrong Answer]
C.	zener current is neither small nor large [Wrong Answer]
D.	None of the above [Wrong Answer]
View Answer 1 -1 Explanation:- Answer : A 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 :

⇒ Microwave resonators are used in
microwave oscillators
microwave narrow band amplifier
microwave frequency metres
all of the above

⇒ For matrix A, A^-1 A = 1
TRUE
FALSE

⇒ V_L = 100 cos (10t + 30&d
116.57 sin (10t - 29°) V
116.57 sin (10t + 29°) V
117.00 sin (10t - 29°) V
117.00 sin (10t + 29°) V

⇒ The effect of negative feedback on distortion and bandwidth because
both are decreased
both are increased
distortion is reduced and bandwidth is increased
distortion is increased and bandwidth is decreased

⇒ The 'h' parameters of the circuit shown in the figure are h_ib = 25 Ω, h_fb = 0.999 and h_ob = 10^-6Ω The Voltage gai
0.99
1.98
2
4

⇒ The active elements on the positive and negative plates of lead acid battery are:
lead peroxide and lead
lead and lead peroxide
lead peroxide and lead sulphate
lead and lead

⇒ In figure, the current through 2 Ω resistanc
zero
-2A
2A
1A

⇒ In a positive edge triggered JK flip flop
High J and High K produce inactive state
Low J and High K produce inactive state
Low J and Low K produce inactive state
High J and Low K produce inactive state

⇒ Which of the following conditions must be satisfied for a transistor to remain under saturation?

Its collector to base junction should be under forward bias.
Its collector to base junction should be under reverse bias.
Its emitter to base junction should be under reverse bias.
Its emitter to base junction should be under forward bias.

Select the correct answer from the codes given below:
1 and 2
1 and 3
2 and 3
1 and 4

⇒ Consider the following statements about ultrasonic flow meters:

The measurement in insensitive to viscosity, pressure and temperature variations.
It has bidirectional measuring capability and can be used for any pipe size.
It has a relatively lower cost.
It has good accuracy, fast response and wide frequency range.

Which of the above statements is/are correct?
1 only
1 and 2 only
1, 2 and 4
3 and 4 only

⇒ The Z parameters Z₁₁ and Z₂₁ for the 2-port network in the fig
Z₁₁ = - 6/₁₁Ω; Z₂₁ = 16/₁₁Ω
Z₁₁ = 6/₁₁Ω; Z₂₁ = 4/₁₁Ω
Z₁₁ = 6/₁₁Ω; Z₂₁ = - 16/₁₁Ω
Z₁₁ = 4/₁₁Ω; Z₂₁ = 4/₁₁Ω

⇒ Form factor for a sine wave is
1.414
0.707
1.11
0.637

⇒ A directional coupler is used
to transmit microwave signals
to generate microwave signals
to measure amplitude and phase of a travelling wave
both (a) and (b)

⇒

Assertion (A): Many times a radar cannot detect 'grounding hopping' military aircraft.

Reason (R): Ground interference limits the range of radar.

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

⇒

Match the following:

	List I		List II
A.	AM-DSB FC	1.	2
B.	WBFM	2.	1
C.	PCM	3.	3m
D.	AM-DSB	4.	2^2N

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

⇒ An antenna array pattern is to used for increasing
gain
directivity
directive gain
all

⇒ Almost all resistors are made in a monolithic integrated circuit
during the entire diffusion
while growing the epitaxial layer
during the base diffusion
during the collector diffusion

⇒ In a differential amplifier, CMRR can be improved by using an increased
emitter resistance
collector resistance
power supply voltages
source resistance

⇒ Fermi level in intrinsic semiconductor is at the centre of forbidden energy band.
TRUE
FALSE

⇒ In a single phase semi-converter the number of thyristors is
16
8
4
2

⇒ When the magnetic vector is parallel to the boundary surface and electric vector is parallel to the place of incidence, the polarization is
zero
vertical
perpendicular
horizontal

⇒

Assertion (A): Boolean expressions can be easily simplified using Karnaugh map.

Reason (R): Karnaugh map can be drawn for minterms as well as max terms.

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 true, R is false
A is false, R is true

⇒ In a full bridge inverter, the waveshape of load current depends on
relative values of load parameters R, L and C
relative values of load parameters R and L
relative values of load parameters L and C
gating frequency

⇒ In a driving point function poles and zeros must be conjugate if complex or imaginary.
TRUE
FALSE

⇒ For a message signal m(t) = cos (2pf_mt) and the carrier frequency f_c, which of the following represents a single side band (SSB) signal?
cos (2pf_mt) cos (2pf_ct)
cos (2pf_ct)
cos [2p(f_c + f_m) t]
[1 + cos (2pf_mt) cos (2pf_ct)]

⇒ A frequency multiplier stage should operate as
class A
class B
class AB
class C

⇒ The term __________ applies to troposcatter propagation
fading
Faraday rotation
SIDS
atmospheric storms

⇒ FSK is a system involving
pulse modulation
frequency modulation
amplitude modulation
phase modulation

⇒ Primary advantage of a crystal oscillator is that
it can oscillate at any frequency
it gives a high O/P voltage
its frequency of oscillation remains almost constant
it operates on a very low dc supply voltage

⇒ For checking the parity of a digital word, it is preferable to use
AND gates
NAND gates
EX-OR gates
NOR gates