Question is ⇒ For a full wave bridge rectifier supplied with 50 Hz a.c., the lowest ripple frequency will be, Options are ⇒ (A) 50 Hz, (B) 100 Hz, (C) 200 Hz, (D) 400 Hz, (E) , Leave your comments or Download question paper.

Question is ⇒ For a full wave bridge rectifier supplied with 50 Hz a.c., the lowest ripple frequency will be, Options are ⇒ (A) 50 Hz, (B) 100 Hz, (C) 200 Hz, (D) 400 Hz, (E) , Leave your comments or Download question paper. Previous question Next question


Q1.	For a full wave bridge rectifier supplied with 50 Hz a.c., the lowest ripple frequency will be
A.	50 Hz [Wrong Answer]
B.	100 Hz [Correct Answer]
C.	200 Hz [Wrong Answer]
D.	400 Hz [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 ripple in collector supply voltage of the output stage of amplifier causes noise.
TRUE
FALSE

⇒ Which of these commutation methods uses an external pulse for commutation?
Class A
Class C
Class E
Class F

⇒ As temperature increases the number of free electrons and holes in an intrinsic semiconductor
increases
decreases
remains the same
may increase or decrease

⇒ Which of these devices can conduct in both directions?
SCR
SUS
SBS
UJT

⇒ Dolby system of noise reduction divides the total audio spectrum into
8 frequency bands
4 frequency bands
2 frequency bands
none of the above

⇒

Assertion (A): When all inputs of a NAND-gate are shorted to get a one input, one output gate, it becomes an inverter.

Reason (R): When all inputs of a NAND-gate are at logic 'O' level, the output is at logic 'I' level.

Both A and R are individually true and R is the correct explanation of A
Both A and R are individually true but R is not the correct explanation of A
A is true but R is false
A is false but R is true

⇒ Which of the following circuit has the greatest bandwidth?
f_r = 455 MHz; Q = 10
f_r = 455 MHz; Q = 100
f_r = 1 MHz; Q = 100
f_r = 1 MHz; Q = 10

⇒ A series RLC circuit is supplied from a variable frequency source. The resonant frequency is ω₀. The voltage across L is maximum at a frequency
equal to ω₀
slightly less than ω₀
slightly more than ω₀
none of the above

⇒ In high power radars, which of the following are used for switching?
Power diode
Power BJT
Power MOSFET
Thyristor

⇒ A capacitor is needed for an ac circuit of 230 V, 50 Hz the peak voltage rating of the capacitor should be
230 V
0.5 x 230 V
2 x 230V
230/2V

⇒ In a power diode the reverse recovery time is the time from the instant the forward current is zero to the instant when reverse recovery current has decayed to
50% of peak reverse current
25% of peak reverse current
10% of peak reverse current
zero value

⇒ The static characteristic of an adequately forward biased p-n junction is a straight line if the plot is of
log I vs log V
log I vs V
I vs log V
I vs V

⇒ In ASCII, letter B is coded as
1000001
1000010
100100
1001000

⇒ In force current analogue, mechanical mobility is analogous to
impedance Z
admittance Y
reactance X
conductance G

⇒ In TV system in India, each frame is divided into
625 horizontal lines
525 horizontal lines
425 horizontal lines
325 horizontal lines

⇒ In push pull amplifier, each transistor conducts for
180°
360°
90°
45°

⇒ X-rays cannot penetrate through a thick sheet of
wood
paper
lead
aluminium

⇒ A phasor is
a line representing the magnitude and direction of an alternating quantity
a line which represents the magnitude and phase of an alternating quantity
an instrument used for measuring phases of an unbalanced 3-phase load
a coloured tag or band for distinguishing between different phases of a 3-phase supply

⇒ In the DRAM cell in the figure is the V_t of the NMOSFET is 1 V. For the following three combinations of WL and BL volta
5 V, 3 V, 7 V
4 V, 3 V, 4 V
5 V, 5 V, 5 V
4 V, 4 V, 4 V

⇒ Which one of the following is used to change data from spatial code to temporal code?
Shift register
Counter
A/D converters
Combinational circuits

⇒

Match the following:

	List I		List II
A.	shift Register	1.	Frequency division
B.	Counter	2.	Addressing in memory chips
C.	Decoder	3.	Serial to parallel Data conversion

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

⇒ Which of the following is not a general purpose peripheral?
I/O port
Programmable interrupt controller
Programmable CRT controller
Programmable interval timer

⇒

Assertion (A): A backward wave oscillator has an internal positive feedback.

Reason (R): A positive feedback is necessary for sustained oscillations.

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

⇒ Long distance short-wave radio broadcasting uses
ground wave
ionospheric wave
direct wave
any of the above

⇒ The signals in 8086 are classified into
minimum mode and maximum mode
decrement mode and increment mode
low mode and high mode
none of the above

⇒ Direct and reflected sound waves may interfere with each other.
TRUE
FALSE

⇒ Derivative control action is effective?
Only during steady state periods
Only during transient state periods
During both steady state and transient state periods
Either during steady state or during transient state periods

⇒ Which of the following produces upper and lower side frequencies?
Microphone
Demodulator in a superheterodyne receiver
Modulator in a. radio transmitter
Oscillator in a receiver

⇒ In a klystron amplifier the input cavity is called
buncher
catcher
Pierce gun
collector

⇒ If the diameter of a wire is doubled, the current carrying capacity of the wire becomes
half
twice
four times
one-fourth