Question is ⇒ For small size high frequency coils, the most common core material is, Options are ⇒ (A) air, (B) ferrite, (C) powdered iron, (D) steel, (E) , Leave your comments or Download question paper.

Question is ⇒ For small size high frequency coils, the most common core material is, Options are ⇒ (A) air, (B) ferrite, (C) powdered iron, (D) steel, (E) , Leave your comments or Download question paper. Previous question Next question


Q1.	For small size high frequency coils, the most common core material is
A.	air [Correct Answer]
B.	ferrite [Wrong Answer]
C.	powdered iron [Wrong Answer]
D.	steel [Wrong Answer]
View Answer 5 -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 :

⇒ For Bode plot of (1 + jωT) has
slope of 20 dB/decade and phase angle + tan^-1 (ωT)
slope of - 20 dB/decade and phase angle + tan^-1 (ωT)
slope of 20 dB/decade and phase angle - tan^-1 (ωT)
slope of - 40 dB/decade and phase angle - tan^-1(ωT)

⇒ In a common Emitter BJT amplifier, the maximum usable supply voltage is limited by
avalanche breakdown of Base emitter junction
collector to Base Breakdown voltage with emitter open (βV_CBO)
collector Emitter Breakdown voltage with base open (βV_CBO)
zener breakdown voltage of the emitter base Junction

⇒ LVDT is used to measure
displacement
pressure
temperature
any of the above

⇒ If the bandwidth is increased by 2, the γ_FM γ_AM (where γ is the ratio of SNR of output to SNR at input, FM is frequency modulation and AM is amplitude modulation) is increased by a factor of
2
3
4
6

⇒ The statement IMPLICIT INTEGER (A - F) in FORTRAN identifies
all variable names which begin with A, B, C, D, E or F as being of integer type
all character names which begin with A, B, C, D, E, or F as being of integer type
all variable names which begin with A and have 6 characters
none of the above

⇒ In ac circuits maximum power is delivered to a load if load impedance is conjugate of source impedance.
TRUE
FALSE

⇒ Which of the following is an indirect way of generating FM?
Armstrong modulator
Varactor diode modulator
Reactance FET modulator
Reactance bipolar transistor

⇒ In graphical analysis of BJT amplifier the slope of ac line is more than that of dc load line.
TRUE
FALSE

⇒ The admittance parameter Y₁₂ in the 2 port network in the fi
-0.2 mho
0.1 mho
-0.05 mho
0.05 mho

⇒ A sinusoidal voltage of 2 kV peak value is amplitude modulated to give 20% modulation. The peak value of each side band term is
400 V
200 V
100 V
800 V

⇒ The transient currents are due to
resistance of the circuit
impedance of the circuit
voltage applied to the circuit
changes in stored energy in inductors and capacitors

⇒ By placing an inverter between both inputs of an S-R flip-flop, the resulting flip-flop becomes
J-K flip-flop
D-flip-flop
T-flip-flop
Master salve JK flip-flop

⇒ In an oscillator the total phase shift around the loop must be
180°
90°
270°
0°

⇒ The poles with greater displacement from the real axis correspond to
higher frequencies of oscillation
stable response
lower frequencies of oscillation
unbounded output

⇒ Which of the following statements is false?
Push pull signals are equal and opposite in phase
Class AB operation cannot be used for a push pull audio power output phase
A push pull output transformer has a centre-tapped primary
All of the above

⇒ For the network in figure, which of the following expressions gives the value of net inductance between terminals A and B
1 only
1 and 2
3 and 4
2 and 4

⇒ Consider the differential amplifier shown in figure. (Assume β is very hi
5 V
10 V
15 V
30 V

⇒ A trimmer is basically a
insulator
inductor
capacitor
variable resistor

⇒ For iron, the ferromagnetic Curie temperature is
about 20 K
about 100°C
about -20°C
about 1000 K

⇒ In a driving point function, the degrees of numerator and denominator polynomials in s may differ by either zero or one only.
TRUE
FALSE

⇒ The efficiency of a chopper circuit is about
80% or more
around 50%
around 20%
around 5%

⇒ The voltage drop per ampere-metre of an aluminium conductor is higher as compared to a copper conductor of the same size due to its higher
insulation resistance
resistivity
conductivity
current density

⇒ In which of the following 8085 instructions are all condition flags except CY affected?
INR r
SEE M
ACI data
ADC r

⇒
Assertion (A): The conductivity of p type semiconductor is higher than that of intrinsic semiconductor.
Reason (R): The addition of donor impurity creates additional energy levels below conduction band.

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

⇒ If Laplace transform of f(t) is F(s), then £ f(t - a) u (t - a)= 0
e^as F(s)
e^-as F(s)
- e^as F(s)
- e ^-as F(s)

⇒ The number of unused states in a 4 bit Johnson counter is
2
4
8
12

⇒ The phase margin and damping ratio have no relation.
TRUE
FALSE

⇒ A counter type A/D converter contains a 4 bit binary ladder and a counter driven by a 2 MHz clock. Then conversion time
8 μ sec
10 μ sec
2 μ sec
5 μ sec

⇒ Which of the following rotors are used in two phase ac servomotor?
Solid iron rotor
Squirrel cage rotor
Drag cup rotor
Of the above the correct ones are
1, 2, 3
1, 2
2, 3
1, 3

⇒ Which of the following counters can be used to divide the clock frequency of a microprocessor by 5?
3 bit counter
5 bit counter
mod 3 counter
mod 5 counter

Users Also Read
Previous Papers

Aptitude

Reasoning

Gen.Knowledge

Speak English

English / Verbal

Online / Mock Test

Vedic Math