Question is ⇒ Ferrites are, Options are ⇒ (A) ferromagnetic materials, (B) ferrimagnetic materials, (C) ferroelectric materials, (D) ferri-ferromagnetic materials, (E) , Leave your comments or Download question paper.

Question is ⇒ Ferrites are, Options are ⇒ (A) ferromagnetic materials, (B) ferrimagnetic materials, (C) ferroelectric materials, (D) ferri-ferromagnetic materials, (E) , Leave your comments or Download question paper. Previous question Next question


Q1.	Ferrites are
A.	ferromagnetic materials [Correct Answer]
B.	ferrimagnetic materials [Wrong Answer]
C.	ferroelectric materials [Wrong Answer]
D.	ferri-ferromagnetic materials [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 :

⇒

Assertion (A): In an R-L circuit having low resistance, current lags the voltage by nearly 90°.

Reason (R): Power factor of a series RL circuit is R/Z.

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

⇒ A shadow zone does not receive any space wave
TRUE
FALSE

⇒ A class B amplifier

is biased just at cutoff
has a high theoretical efficiency of 78.5% because its quiescent current is low
is biased at midpoint of load line

Of the above statements
2 and 3 are correct
1 alone is correct
1 and 2 are correct
2 alone is correct

⇒ Mobility of electrons and holes are equal.
TRUE
FALSE

⇒ Satellite communication systems use the frequency band
10 to 20 MHz
50 to 70 MHz
3 to 6 GHz
100 to 120 GHz

⇒ In a decimal digital computer, the number 127 is stored
1111111
0001 00100111
10001
11000111

⇒ Which of the following devices should be used for accurate measurement of a low dc voltage?
Small range moving coil voltmeter
Dc potentiometer
Small range thermocouple voltmeter
Hot wire instrument

⇒ Which of the following statement is false?
A half-wave dipole is a resonant antenna
A horizontal antenna transmits radio signal with horizontal polarization
The field strength of 200 mV/m will produced 200 μV of signal in an antenna 2 m long
All of the above

⇒ In a turnstile antenna the crossed dipoles are excited with voltages
in phase with each other
90° out of phase with each other
120° out of phase with each other
180° out of phase with each other

⇒ The trignometric Fourier series of an even function of time does not have
dc term
cosine term
sine term
odd harmonic terms

⇒ Using 2's complement, the largest positive and negative number which can be stored with 8 bits are
+128 and -127
+128 and -128
+127 and -128
+127 and -127

⇒ Which of the following is a circularly polarized antenna?
Horn
Dipole
Helical
Pyramidal

⇒

Assertion (A): Both sodium and ferrous are ferromagnetic.

Reason (R): Both sodium and ferrous have body centred cubic structure.

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

⇒ The noise margin of a TTL gate is about
0.2 V
0.4 V
0.6 V
0.8 V

⇒ A lossless transmission line is 50 cm long and operates at a frequency of 500 MHz. Inductance and capacitances present in a line are 0.5 μH/m and 200 pF/m. Phase constant and phase velocity are respectively.
5p, 2p x 10⁸ m/sec
5p, 10⁸ m/sec
31.4, 10⁸ m/sec
31.4, 2p x 10⁸ m/sec

⇒ In figure, capacitor is used to develop pulses of short duration and large duty cycle across R₂ when switch is closed. Which of the following combinations is best sui
R₁ and R₂ large but C small
R₁ and R₂ small but C large
R₁ and C large and R₂ small
R₂ and C large but R₁ small

⇒ The graph of a network has 6 branches with 3 tree branches. The minimum number of equations required for solution of network is
2
3
4
5

⇒ The instruction MVI A, 20 in 8085 means
contents of memory location 20 are brought into the accumulator
the value 20 is brought into accumulator
either (a) or (b)
neither (a) nor (b)

⇒ From which instant is the turn off time of a thyristor defined
when anode voltage becomes zero
when anode current becomes zero
when both anode voltage and current become zero
none of the above

⇒ SHF range is
30 - 300 MHz
300 - 3000 MHz
3000 - 30000 MHz
30000 - 300000 MHz

⇒ The normalised form of 1.81 x 10^-11 is
18.1 x 10^-12
18.1 x 10^-13
0.181 x 10^-10
0.0181 x 10^-9

⇒

Assertion (A): Tunnel diode is used in many pulse and digital circuits.

Reason (R): The v-i curve of a tunnel diode resembles letter 'N'.

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

⇒ In a bipolar transistor at room temperature if the emitter current is doubled the voltage across its base emitter junction
doubles
halves
increase by about 20 mV
decrease by about 20 mV

⇒

Assertion (A): The main use of positive feedback is in oscillator circuits.

Reason (R): In an oscillator the loop gain Aβ is kept slightly more than unity

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

⇒ Which memory is available in all technologies?
PROM
EEPROM
ROM
EPROM

⇒ A (75 - j 40) W load is connected to a co-axial line of z₀ = 75ω at 6 MHz. The load matching on the line can be accomplished by connecting
a short circuit stub at the load
an inductance at the load
a short circuit stub at a specific distance from the load
a capacitance at a specific distance from the load

⇒ The properties of JFET resemble those of
thermionic values
N-P-N transistors
P-N-P transistors
unijunction transistor

⇒ The maximum range of a transmitter depends on
its frequency
its power
both its frequency and power
none of the above

⇒ The maximum rectification efficiency in case of full wave rectifier is
1
0.812
0.666
0.406

⇒ Silicon and germanium have diamond structure. The number of atoms in a volume equal to a³ where a is the edge of elementary cube are
32
16
8
4