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Q1. | M = (μ_{r} - 1)H. |

A. | TRUE [Correct Answer] |

B. | FALSE [Wrong Answer] |

View Answer
Explanation:-
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**Also Read Similar Questions Below :**

⇒ The logic realized by the circuit shown in fi

F = A ⊙ C

F = A ⊕ C

F = B ⊙ C

F = B ⊕ C

⇒ Which of the following is not an application software?

MS Word

DBMS

Worksheet

Lisp

⇒ The circuit shown in figure will ac

differentiator

adder

clipper

clamper

⇒

*h*parameters are used in transistor analysis.

TRUE

FALSE

⇒ To draw dc equivalent circuit for a CE amplifier circuit we should

Reduce all ac sources to zero

Open all capacitors

Reduce all ac sources to zero and open all capacitors

Reduce all ac sources to zero and short all capacitors

⇒ The circuit in figure, is to be scaled to an impedance level of 5kΩ and resonant frequency of 5 x 10

^{6}rad/sec. The possible combination of R, L,

2.5Ω, 0.2 mH, 200 pF

5 kΩ, 0.2 mH, 200 pF

5 kΩ, 0.2 mH, 200 μF

5 kΩ, 0.1 mH, 0.4 μF

⇒ A high resistance was measured by loss of charge method. The voltmeter resistance was 10

^{10}ohms. The calculation gave the value of unknown resistance as 0.8 x 10

^{9}ohms. The true value of resistance is

0.8 x 10

^{9}Ω

less than 0.8 x 10

^{9}Ω

more than 0.8 x 10

^{9}Ω

either (b) or (c)

⇒ The 8085 instruction LDA FFA is an example of

Direct addressing

Register addressing

Immediate addressing

Register indirect addressing

⇒ Overall efficiency of class B amplifier is

0.72

0.75

0.785

0.7

⇒ The wave in wave guide has

group velocity inversely proportional to wavelength

larger frequency than in the free space

diminishing wavelength than in the free space

larger wavelength than in the free space

⇒ In broadside array

the principle direction radiation is perpendicular to the array axis and also to the plane containing the array elements

the principle direction radiation is parallel to the array axis and also to the plane containing the array elements

the principle direction radiation is parallel to the array axis and perpendicular to the plane containing the array elements

the principle direction radiation is perpendicular to the array axis and parallel to the plane containing the array elements

⇒ The energy to cause thermionic emission is supplied by heating the cathode.

TRUE

FALSE

⇒ The phase difference between them is __________ degrees.

15

50

60

105

⇒ Automobile ignition systems use the principle of

resistance

self inductance

mutual inductance

capacitance

⇒ The Boolean function A + BC is reduced form of

AB + BC

AB + ABC

(A + B) (A + C)

(A + C)B

⇒ The voltage gain of which transistor configuration is less than unity?

CB

CE

CC

None

⇒ F.T. of continuous non-periodic signal is

aperiodic

periodic

a and b

none

⇒ In case of a low level AM transmitter, the amplifier modulated stage must be

class A

class B

class B (linear)

class C

⇒ Fourier transform o the function

*f*(

*t*) = 1 is

2p δ (ω)

p δ (ω)

δ(ω)/2p

δ(ω)/p

⇒ In a television transmitter, the output stage is most likely to be

screen modulated class C amplifier

plate modulated class C amplifier

grid modulated class A amplifier

grid modulated class C amplifier

⇒ In figure I

_{D}= 4 mA. Then V

_{S20 V4.4 V0.4 V0.44 V}

⇒ If a function

*f*(

*t*) is an odd, function, its Fourier series

contains only sine terms

contains only cosine terms

contains a constant and sine terms

contains a constant and cosine

⇒ If the functions

*w, x, y, z*are as foll

*w = z x = z*

*w = z, x = y*

*w = y*

*w = y = z*

⇒ The resolution of an

*n*bit DAC with a maximum input of 5 V is 5 mV. The value of

*n*is

8

9

10

11

⇒ When UJT is used for thyristor gate signal, the output of UJT is

sine wave

square wave

saw tooth wave

either (a) or (c)

⇒ The number of noise sources in a BJT are

3

2

1

4

⇒ Consider the following statements

- Impedance of Gunn diode is about tens of ohms.
- Impedance of Impatt diode is a few ohms.
- Impedance of Impatt diode are of the same order.
- Impedance of Impatt diode is more than that of Gunn diode.

all

1 and 2 only

1, 2 and 3

1, 2 and 4

⇒ A super heterodyne receiver has a IF of 465 kHz. It is tuned to a station broadcasting at 500 KHz and its oscillator is operating at 965 KHz, then the 1330 KHz frequency would be

adjacent channel frequency

image frequency

gyro frequency

maximum usable frequency

⇒ If

*a*and

*b*are the width and height of rectangular wave-guide the cut off wavelength λ

_{c}for TE

_{20}mode is equal to

*a*

*a*+

*b*

*a*-

*b*

*a*

^{2}+

*b*

^{2}

⇒ The output resistance of a microphone is 20 ohms. It is to feed a line of impedance 320 ohms. To ensure maximum power transfer, the turn ratio of transformer is

16

256

2

4