Question is ⇒ What is the necessary a.c. input power from the transformer secondary used in a half wave rectifier to deliver 500 W of d.c. power to the load?, Options are ⇒ (A) 1232 W, (B) 848 W, (C) 616 W, (D) 308 W, (E) , Leave your comments or Download question paper.

Question is ⇒ What is the necessary a.c. input power from the transformer secondary used in a half wave rectifier to deliver 500 W of d.c. power to the load?, Options are ⇒ (A) 1232 W, (B) 848 W, (C) 616 W, (D) 308 W, (E) , Leave your comments or Download question paper. Previous question Next question


Q1.	What is the necessary a.c. input power from the transformer secondary used in a half wave rectifier to deliver 500 W of d.c. power to the load?
A.	1232 W [Correct Answer]
B.	848 W [Wrong Answer]
C.	616 W [Wrong Answer]
D.	308 W [Wrong Answer]
View Answer 2 -2 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 :

⇒ In a loss less line the propagation constant is equal to
jωLC
LC
jωLC
LC

⇒ To couple a coaxial line to a parallel to wire line it is best to use a
slotted line
balun
directional coupler
quarter wave transformer

⇒ The function f(t) = E[u(t - a) - u(t - b)] is
a pulse function originating at t = a
a step function orginating at t = 0
an exponential function originating at t = a
a pulse function originating at t = a and duration (b - a)

⇒ In sign magnitude numbers,
the leading bit stands for the sign
the leading bit is part of the magnitude
the leading bit is always 0
the leading bit is always 1

⇒ What will be conversion rate for a counter type A/D converter contains a 4 bit binary ladder and a counter driven by a 2 MHz clock. Then conversion time
125
125 x 10³
125 x 10⁶
None

⇒ In an hydrogen atom, an electron moves in the field of a proton. The stability of orbit requires equilibrium between coulomb's force and centrifugal force.
TRUE
FALSE

⇒ During day time ionosphere consist of
D, E, F₂ layers
D, E, F layers
D, E, F₁, F₂ layer
none

⇒ The series element in band pass filter is
capacitive
inductive
parallel combination of inductance and capacitance
series combination of inductance and capacitance

⇒ In the analysis of common emitter amplifier we may neglect
h_re
h_oe
h_fe
h_ie

⇒ The Shannon-Hartley law
refers to noise
defines bandwidth
describes signalling rate
refers to distortion

⇒ In the basic series inverter circuit, the source supplies load
only in positive half cycle
both in positive and negative half cycles
only in part of positive half cycle
in positive half cycle and part of negative half cycle

⇒ In the circuit of fi
V_a would always lag V_b
V_a would always lead V_b
V_a and V_b would always be in phase
V_a may lag or lead V_b

⇒ VSWR = E_max/E_min.
TRUE
FALSE

⇒ The equivalent circuit of an op-amp has
a virtual ground at input
a virtual ground at output
virtual ground at input as well as at output
none of the above

⇒ The z-transform of sequence x[n] = δ(n) is
1
∞
0
z

⇒ The dielectrics having only one kind of atoms are known as elemental dielectrics.
TRUE
FALSE

⇒ The image frequency of a superheterodyne receiver is
independent of the frequency at which the receiver is tuned
always outside the operating range of the receiver
typical to FM receivers only
not rejected by the IF tuned circuits

⇒ In a dynamometer 3 phase power factor meter, the planes of the two moving coils are at
60°
0°
120°
90°

⇒ The transfer function of a system is given by H(s) = 1/s² (s - 2). The impulse response of the system is
(t^2* e^-2t) U(t)
(t^* e^2t) U(t)
(te^-2t) U(t)
(te^2t) U(t)

⇒ A circular waveguide has an infinite set of TE and TM modes.
TRUE
FALSE

⇒ Which of the following has unique representation of 0?
sign magnitude
1's complement
2's complement
both (b) and (c)

⇒ Find the output voltage for 011100 in a 6 bit R-2R ladder D/A converter has a reference voltage of 6.5 V.
6.4 V
2.84 V
0.1 V
8 V

⇒ For a Gaussian process, auto-correlation sequence also implies that
statistical independence
statistical dependence
ergodic process
all

⇒ In an n channel MOSFET, the substrate is connected
to negative terminal of battery
to positive terminal of battery
to either positive or negative terminal of battery
none of the above

⇒ A certain sound has 10000 times more energy than another sound. The number of times it would sound stronger to a listener is
40
10000
100
10

⇒ Voltage standing wave pattern in a loss less transmission line with characteristic impedance 50 Ω and a resistive load is shown in the figu
50 Ω
200 Ω
12.5 Ω
0 Ω

⇒ The relation between thermal conductivity K (W/m/°C), heat flow density Q (watt/m²) and dT/dx (°C per metre) is
Q = K(dT/dx)
Q = - K(dT/dx)
K = Q(dT/dx)
dT/dx = - QK

⇒ Equation x_l0 = 11001001₂ when solved for x gives the value of x as
8
111
152
201

⇒ In the epitaxial diffused method of fabricating integrating circuits the process involved are __________

Epitaxial growth
Diffusion
Silicon diode growth
Vacuum evaporation of aluminium
Photoetching

The correct order is
1 - 2 - 3 - 4 - 5
1 - 3 - 5 - 2 - 4
3 - 1 - 4 - 5 - 2
1 - 3 - 2 - 4 - 5

⇒ Holes act like
positive charges
neutral atoms
negative charges
crystals