Question is ⇒ In a diode rectifier with a capacitance input filter, a surge current is likely to flow when the circuit is switched on. The cause of this surge current is, Options are ⇒ (A) the non linear behaviour of diodes, (B) the capacitor acts as a short circuit at the instant of switching,, (C) the inductance of leads, (D) both (a) and (b), (E) , Leave your comments or Download question paper.

Question is ⇒ In a diode rectifier with a capacitance input filter, a surge current is likely to flow when the circuit is switched on. The cause of this surge current is, Options are ⇒ (A) the non linear behaviour of diodes, (B) the capacitor acts as a short circuit at the instant of switching,, (C) the inductance of leads, (D) both (a) and (b), (E) , Leave your comments or Download question paper. Previous question Next question


Q1.	In a diode rectifier with a capacitance input filter, a surge current is likely to flow when the circuit is switched on. The cause of this surge current is
A.	the non linear behaviour of diodes [Wrong Answer]
B.	the capacitor acts as a short circuit at the instant of switching, [Correct Answer]
C.	the inductance of leads [Wrong Answer]
D.	both (a) and (b) [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 narrow band FM does not have the following feature
it has two sidebands
both sideband equal in magnitude
both sideband have same Phase Difference
it does not show Amplitude variation

⇒ Which statement is true for an ac circuit?
Active power is always less than apparent power
Active power cannot be more than apparent power
Active power is always more than reactive power
Active power cannot be more than reactive power

⇒ Which of the following statement is correct?
The input impedance of CE amplifier is usually around 10 Ω
The voltage gain of a transistor amplifier in CE mode is always less than unity
The output impedance of a transistor amplifier is independent of the transistor configuration
The voltage gain of a transistor amplifier is independent of the load resistance

⇒ A network has two sources of different frequencies. The only method of analysis which can be used to find current and voltages of different branches is the use of
Kirchoff's laws
Superposition theorem
Thevenin's theorem
Tellegen's theorem

⇒

Match the following:

	List I (Types of N-bit ADC)		List II (Characteristics)
A.	Flash converter	1.	Integrating Type
B.	Successive	2.	Fastest converter approximation
C.	Counter ramp	3.	Maximum conversion time = N bits
D.	Dual slow	4.	Used a DAC in its feedback path

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

⇒ For real values of x, the minimum value of the function f(x) exp (x) + exp (- x) is
2
1
0.5
0

⇒ The fact that domains exhibits spontaneous magnetisation is
first hypothesis is of Curie
second hypothesis is of Weiss
Curie-Weiss law
Boltzmann's statistics

⇒

Assertion (A): Microprocessor 8085 has an 8 bit register called accumulator which stores intermediate answers during a computer operation.

Reason (R): Accumulator can send or receive data.

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

⇒ Modulation system used for video-modulation in television broadcast is
SSB AM with carrier
SSB with carrier suppressed
DSB AM with carrier
a modified form of SSB with carrier called vestigial sideband

⇒ In figure, the transmission parameters are A = C = 1, B = 2 and D = 3. Then Z_{in12/13 Ω
13/12 Ω
3 Ω
4 Ω}

⇒ If INT = 50 and LOOT = 30, the result of assignment statement SAL = INT + LOOT is
50
80
8
5

⇒ With which decoder it is possible to obtain many code conversions?
2 line to 4 line
3 line to 8 line
not possible with any decoder
4 line to 16 line decoder

⇒ The following k-map implem
BCD to Decimal Decoder
Decimal to BCD Encoder
1 of 10 Decoder
(a) and (c)

⇒ For a parallel two wire line with both conductors touching each other, the characteristic impedance is about
300 Ω
200 Ω
80 Ω
24 Ω

⇒ For the logic circuit given, what is the simplified Boolean funct
X = AB + C
X = BC + A
X = AB + AC
X = AC + B

⇒ For the network in figure, the correct loop equation for loop
-I₁ + 4I₂ + 11I₃ = 0
I₁ + 4I₂ + 11I₃ = 0
-I₁ - 4I₂ + 11I₃ = 0
I₁ - 4I₂ + 6I₃ = 0

⇒ In all pure metals, temperature coefficient of resistance is positive.
TRUE
FALSE

⇒ In the human eye, an image persists for a time of about
1 second
0.1 second
0.05 second
0.02 second

⇒ What can be the maximum dimension of an array in C language program?
3
4
5
It is compiler dependent

⇒ A digital system is required to amplify a binary encoded audio signal. The user should be able to control the gain of the amplifier from a minimum to a maximum in 100 increments. The minimum number of bits required to encode, in straight binary is,
8
6
5
7

⇒ Troposphere is the upper part of the Earth's atmosphere which absorbs large quantities of Sun's radiations.
TRUE
FALSE

⇒ Directivity gain depends on
the distribution of radiated power in space
solid angle of the radiated field pattern
both (a) and (b)
none of the above

⇒ The RC network of wein bridge oscillator consists of resistors and capacitors of values R = 220 kΩ and C = 250 PF Determine the frequency of oscillation
2.98 kHz
3 kHz
2 kHz
10 kHz

⇒ If t_p is the pulse width, Δ_t is the propagation delay, T is period of pulse train then the following condition can avoid the race around condition
t_p = Δt = T
2t_p > Δt > T
t_p < Δt < T
t_p < Δt < T

⇒ The "boundary sphere" between antenna region and free space region appears to "opaque"
along the dipole axis
along perpendicular direction
along the dipole axis as well as perpendicular direction
neither along the dipole axis nor along the perpendicular direction

⇒ For infinite value of SWR on a transmission line, the line be terminated with impedance as
an open-circuit
a short-circuit
a pure resistance
all of the above

⇒ A typical value of g_m for a FET is about 25 μs.
TRUE
FALSE

⇒ In a synchro error detector, the output voltage is proportional to [ω(t)]ⁿ, where ω(t) is the rotor velocity and n equals :
-2
-1
1
2

⇒ DVD uses
Laser beam for both recording and playback
Laser beam for recording and video head for playback
Video head for recording and laser beam for playback
None of the above

⇒

Assertion (A): A dc stabilizer has constant output voltage irrespective of variations in input voltage and load current

Reason (R): A dc series regulator uses a zener diode across the load to stabilize the output voltage.

Both A and R are correct and R is correct explanation for A
Both A and R are correct but R is not correct explanation for A
A is correct R is wrong
A is wrong R is correct