Question is ⇒ A dc chopper is feeding an RLE load. The condition for maximum ripple is, Options are ⇒ (A) a = 1, (B) a = 0.8, (C) a = 0.5, (D) a < 0.5, (E) , Leave your comments or Download question paper.

Question is ⇒ A dc chopper is feeding an RLE load. The condition for maximum ripple is, Options are ⇒ (A) a = 1, (B) a = 0.8, (C) a = 0.5, (D) a < 0.5, (E) , Leave your comments or Download question paper. Previous question Next question


Q1.	A dc chopper is feeding an RLE load. The condition for maximum ripple is
A.	a = 1 [Correct Answer]
B.	a = 0.8 [Wrong Answer]
C.	a = 0.5 [Wrong Answer]
D.	a < 0.5 [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 :

⇒ As compared to tuned radio frequency receivers which of the following is the advantage of using superheterodyne receivers?
High gain and better sensitivity
Better selectivity at high frequencies
Stability
Noise suppression

⇒

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

⇒ The holes diffuse from P-region to the N-region in a P-N junction diode because
there is greater concentration of holes in the P-region as compared to N-region
there is greater concentration of holes in the N-region as compared to P-region
the free electrons in the N-region attract them
potential difference facilities such transfer

⇒

Assertion (A): Many instruments use eddy current damping.

Reason (R): Eddy currents set up a magnetic flux which opposes the original movement which generates them.

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

⇒ In Pascal the repeat and while loops will terminate
only when the logical expression controlling the loop becomes true for both repeat and while loops
only when the logical expression controlling the loop becomes false for both repeat and while loops
only when the logical expression controlling the loop becomes true for repeat loop and false for while loop
only when the logical expression controlling the loop becomes false for repeat loop and true for while loop

⇒ In figure, capacitor is uncharged. The switch is closed at t = 0 at t = 0⁺ di/dt100 A/s
-100 A/s
1000 A/s
-1000 A/s

⇒
Assertion (A): Gray code is used in shaft position encoding.
Reason (R): In gray code only a single bit change occurs when going from one code to another.

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

⇒ The sensitivity of human eyes is maximum at
white portion of spectrum
green portion of spectrum
red portion of spectrum
violet portion of spectrum

⇒
Assertion (A): If an atom of polarizability a is placed in homogeneous field E, the energy stored is 0.5 aE².
Reason (R): Capacitance of an isolated conducting sphere R in vacuum is 4 p∈₀ R farads.

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

⇒ If V = 4 in the figure, the value of I_S is given
0.25
5/2 A
0
None of these

⇒ An end fire array consisting of several half-wave lengths of directive gain 40, then find the width of major lobe
60
50
51.25
None of the above

⇒ Which of the following characteristics of a silicon p-n junction diode make it suitable for use as ideal diode?
It has low saturation current.
It has high value of cut in voltage.
It can withstand large reverse voltage.
When compared with germanium diode, silicon diode shows a lower degree of temperature dependence under reverse conditions.
Select the answer using the given below
1 and 2
1, 2, 3, 4
2, 3, 4
1, 3

⇒ The fourier transform of a voltage signal x(t) is X(f). The unit of X(f) is __________ .
volts
volt²
volt/sec
volt-sec

⇒ The name modem is a contraction of terms modulator demodulator.
TRUE
FALSE

⇒ A transistor in CE mode is in saturation region. Then the collector is almost at
ground potential
a potential equal to V_CC
a potential equal to 0.5 V_CC
a potential equal to 2 V_CC

⇒ A series resonant circuit has parameters 10 ω, 1 H and 0.1 F. It is excited by a voltage v = 100 sin ωt. At resonant frequency, the power dissipated in the circuit is
1000 W
707 W
500 W
414.14 W

⇒ The h parameter equivalent to ac resistance r_e is
h_ib
h_fe
h_ob
h_rb

⇒ Between which points does UJT exhibit negative resistance characteristics
between peak and valley points
before peak point
after peak point
after valley point

⇒ A wavelength of 1 mm could be expected in
VLF
HF
EHF
SHF

⇒ The frequency tolerance for the RF carrier in the standard AM radio broadcast band is
zero
+20 Hz
+1000 Hz
+25 Hz

⇒ A parametric amplifier uses
non linear resistance
non linear reactance
either (a) or (b)
neither (a) nor (b)

⇒ A pre-emphasis circuit
boosts base frequencies
pre amplifies the complete audio band
amplifies higher audio frequencies
converts FM into phase modulation

⇒ Which is a digital coding technique?
PCM
DM
DPCM
All

⇒ In a series R-L-C circuit, the voltage across inductance will be maximum
at resonance frequency
just before resonant frequency
just after resonant frequency
none of the above

⇒ Which of the following instruments has non-linear scale?
Moving coil instrument
Moving iron instrument
Electrostatic instrument
Rectifier instrument
Select the answer as per following codes
2 only
2 and 3 only
2, 3 and 1
1, 2, 3 and 4

⇒ The poles and zeros of a positive real functions are real or occur in conjugate pair.
TRUE
FALSE

⇒ If a zero is added to a second order underdamped system
the peak overshoot is increased
the peak overshoot is decreased
the peak overshoot remains unchanged
either (a) or (b)

⇒ Sampling frequency
100 Hz
200 Hz
400 Hz
none of these

⇒ In a half bridge inverter the gate pulses of the two thyristors have a phase displacement of
60°
90°
120°
180°

⇒ Which impurity atom will give p type semiconductor when added to intrinsic semiconductor?
Phosphorus
Boron
Arsenic
Antimony

Users Also Read
Previous Papers

Aptitude

Reasoning

Gen.Knowledge

Speak English

English / Verbal

Online / Mock Test

Vedic Math