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Q1. | The statement that the line integral of magnetic field about any closed path is exactly equal to the direct current enclosed by that path, is known as |

A. | Ampere's circuital law [Correct Answer] |

B. | Coulomb's law [Wrong Answer] |

C. | Electrostatic's theory [Wrong Answer] |

D. | None of the above [Wrong Answer] |

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

⇒ The ratio of the diffusion coefficient in a semiconductor has the units

V

^{-1}

em.V

^{-1}

V.cm

^{-1}

V.

*s*

⇒ The resonant frequency of a series resonant circuit is

arithmetic mean of half power frequencies

independent of inductance of the circuit

independent of capacitance of the circuit

geometric mean of half power frequencies

⇒ If D, G and η denote the directly, power gain and efficiency of an antenna, then which of the following relation holds :

DGη = 1

η = DG

D = ηG

D = G/η

⇒ Quartz crystal has

very small Q

small Q

very high Q

Q less than 1

⇒ The log magnitude plot of the given figure is

type 0 system

type 1 system

type 2 system

either type 0 or type 1 system

⇒ Consider the following statements:

- Race around condition can occur in JK flip flop when both inputs are 1
- A flip flop is used to store one bit of information
- A transparent latch is a D type flip flop
- Master slave flip flop is used to store two bits of information

1, 2, 3

1, 3, 4

1, 2, 4

2, 3, 4

⇒ The decimal equivalent of ABC

_{16}is

348

2583

2748

33

⇒ Conductivity is measured in terms of

mho/metre

ohm/metre

mho/metre

^{2}

ohm/metre

^{2}

⇒ For a full wave bridge rectifier supplied with 50 Hz a.c., the lowest ripple frequency will be

50 Hz

100 Hz

200 Hz

400 Hz

⇒ The electrical requirement on wall thickness of rectangular wave guide is

wall thickness is more than skin depth

wall thickness is less than skin depth

wall thickness is equal to skin depth

either (b) or (c)

⇒ The fluctuation in the received signal strength at the receiver of a random variation in the received signal is known as

fluctuation

fading

absorption

cycling

⇒ Transport lag usually exists in

thermal systems

hydraulic systems and thermal systems

pneumatic systems

thermal, hydraulic and pneumatic systems

⇒ In 2's complement representation the number 11100101 represents the decimal number

37

-31

27

-27

⇒ The number of bits in ASCII is

12

10

9

7

⇒ When .4546 E 5 and .5433 E 7 are to be added in normalized floating point mode

none of the numbers is changed to any other form

.4546 E 5 is changed .004546 E 7 and .5433 E 7 is not changed

.5433 E 7 is changed to 54.33 E 5 and .4546 E 5 is not changed

both the numbers are changed and their exponents are made equal to 6

⇒ In 8085 the instruction

`MOV A, B`

is an example ofDirect addressing

Immediate addressing

Register addressing

Register indirect addressing

⇒ The total insulation resistance consists of insulation volume resistance and surface leakage resistance.

TRUE

FALSE

⇒ A string constant in basic is

a string of capital alphabets A to Z, included in question mark

a string of capital alphabets A to Z and digits 0 to 9 included in question mark

a string of capital alphabets A to Z, digits 0 to 9 and special characters

a string of capital alphabets A to Z, digits 0 to 9 and special characters included in question mark

⇒ Which of the following bridges is also used in an oscillator?

Maxwell

Schering

Hay

Wien

⇒ In the stabilized reactance modulators AFC system

the discriminator must have a fast time constant to prevent demodulation

the higher discriminator frequency the better the oscillator frequency stability

the discriminator frequency must not be too low, or the system will fail

phase modulation is converted into FM by the equalizer circuit

⇒ An LED is

an ohmic device

a display device

a voltage regulated device

all of the above

⇒ The number of valence electrons in silicon atom is

4

2

1

zero

⇒ Nyquist plot provides information about absolute stability as well as relative stability.

TRUE

FALSE

⇒ The current flow in a semiconductor is due to

holes

electrons

holes and electrons

holes, electrons and ions

⇒ Which of the following are useful in comparing the noise performance of receivers?

- Input noise voltage
- Noise figure
- Noise resistance
- Noise temperature

1, 2 and 3

1, 3 and 4

2, 3, 4

1, 2, 4

⇒ In the circuit of figure β = 50 and V

_{BE}= 0.5 V. The quiescent value of base current I

_{Babout 28 μAabout 28 mAabout 0.28 μAabout 2.8 A}

⇒ The pure capacitor connected across an A.C. voltage consumed 20 W. This is due to

the capacitive reactance in ohms

the current flowing in the capacitor

the fused capacitor was a big one

none of the above

⇒ X(

*t*) is a stationary process with the power spectral density S

_{x}(

*f*) > 0 for all

*f*. The process is passed through a system shown be

S

_{y}(

*f*) > 0 for all

*f*

S

_{y}(

*f*) = 0 for |f| > 1kHz

S

_{y}(

*f*) = 0 for

*f*=

*nf*

_{0},

*f*

_{0}= 2kHz,

*n*any integer

S

_{y}(

*f*) = 0 for

*f*= (2

*n*+ 1)

*f*

_{0}= 1 kHz,

*n*any integer

⇒ The Boolean function A + BC is a reduced form of

AB + BC

(A + B) . (A + C)

AB + ABC

(A + C) . B

⇒ Which one is correct option?

TEM mode exist in free space of infinite boundary

TEM mode exist in two conductor pattern system for finite-boundary

TEM mode exist in waveguide only

Both (a) and (b)