Question is ⇒ The important postulate arising out of Maxwell's modification of Ampere's law is, Options are ⇒ (A) a changing magnetic field produces an electric field, (B) a changing electric field produces a magnetic field, (C) a motional e.m.f. is produced by a coil moving in a magnetic field, (D) a steady current produce a magnetic field, (E) , Leave your comments or Download question paper.

Question is ⇒ The important postulate arising out of Maxwell's modification of Ampere's law is, Options are ⇒ (A) a changing magnetic field produces an electric field, (B) a changing electric field produces a magnetic field, (C) a motional e.m.f. is produced by a coil moving in a magnetic field, (D) a steady current produce a magnetic field, (E) , Leave your comments or Download question paper. Previous question Next question


Q1.	The important postulate arising out of Maxwell's modification of Ampere's law is
A.	a changing magnetic field produces an electric field [Wrong Answer]
B.	a changing electric field produces a magnetic field [Correct Answer]
C.	a motional e.m.f. is produced by a coil moving in a magnetic field [Wrong Answer]
D.	a steady current produce a magnetic field [Wrong Answer]
View Answer 4 -1 Explanation:- Answer : B 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 :

⇒ The dependent current source shown in given fig
delivers 80W
absorbs 80W
deliver 40W
absorbs 40W

⇒ The capacitance of a parallel plate capacitor varies as per the equation C(t) = C₀ (1 - cos ωt). It is connected to a battery of V volts. The equation for current is
ωC₀V (1 - cos ωt)
ωC₀V(1 - sin ωt)
ωC₀V (1 - sin 2ωt)
ωC₀V sin ωt

⇒ The chemical effect of current is used in
dc ampere hour meter
dc ammeter
ac energy meter
all of the above

⇒ In orthogonal BFSK. the energy of information bearing term is :
the same as total transmitted energy
one half of total transmitted energy
one fourth of total transmitted energy
None

⇒ In a klystron amplifier the bunching effect
converts velocity modulation into current modulation of beam
converts current modulation into velocity modulation of beam
both (c) and (b)
neither (a) nor (b)

⇒

Match the following:

	List I		List II
A.	Tunnel diode	1.	is also known as hot carrier diode
B.	PIN diode	2.	used with reverse bias
C.	Zener diode	3.	has an intrinsic layer
D.	Schottky diode	4.	v-i curve has shape of N

A-2, B-3, C-1, D-4
A-4, B-3, C-2, D-1
A-3, B-2, C-4, D-1
A-1, B-2, C-3, D-4

⇒ The effective channel length of a MOSFET in saturation decreases with increase in
gate voltage
drain voltage
source voltage
body voltage

⇒ The addition of a zero to the open loop transfer function
pulls the root locus to the left and makes the system more stable
pulls the root locus to the right and makes the system less stable
either (a) or (b)
neither (a) nor (b)

⇒ Consider the following rules for constructing variable names in C

It can have alphabets, digits or underscores but no other special character.
The maximum number of characters is 8.
The first character may be an alphabet or digit but not underscore.

Which of the above are correct?
All
1 and 2 only
1 and 3 only
2 and 3 only

⇒ When a diode is not conducting, its bias is
forward
zero
reverse
zero or reverse

⇒ Current having waveform in figure flows through 10 Ω resistance. Average powe
1000 W
500 W
333.3 W
250 W

⇒ If the atomic number of germanium is 32, the number of electrons in the outer most shell will be
2
3
4
6

⇒ For a n-channel JFET with r₀ = 10 kW, (V_Gs= 0 V, V_P = - 6 V)the drain resistance r_d at V_GS= - 3 V is given by
40 kΩ
2.5 kΩ
4.44 kW
120 kW

⇒

Assertion (A): A transistor requires a continuous base signal for conduction but a thyristor requires a gate pulse.

Reason (R): Transistor find widespread application in power electronic circuits.

Both A and R are correct and R is correct explanation of A
Both A and R correct but R is not correct explanation of A
A is correct but R is wrong
A is wrong but R is correct

⇒ V-I relationship of a network N is given by, V = 8 -
0, 2
0, 4
2, 4
None of these

⇒ A 1000 kHz carrier is simultaneously modulated with 300 Hz, 800 Hz and 2 kHz audio sine waves. Which of the following frequency is least likely to be present in the output?
1002 kHz
1000 kHz
999.2 kHz
998.0 kHz

⇒ In Bode diagram (log magnitude plot) of the factor 1/(1 + jωT) in the transfer function the log magnitude for ω << 1/T can be approximated by
0 dB
20 log ωT dB
-20 log ωT dB
none of the above

⇒ In a class C operation V_CC = 40 V and V_CE(sat) = 0.4 V. The efficiency is
0.9
0.495
0.01
0.005

⇒ Gold is often diffused into silicon P-N junction devices to
increase recombination rate
reduce recombination rate
make silicon a direct gap semiconductor
make silicon semimetal

⇒ Long distance short-wave radio broadcasting uses
ground wave
ionospheric wave
direct wave
any of the above

⇒

Assertion (A): If a carrier is modulated by three sine waves and m₁, m₂, m₃ are the modulation indices, the total modulation index m_t
Both A and R are correct and R is correct explanation of A
Both A and R are correct but R is not correct explanation of A
A is correct but R is wrong
A is wrong but R is correct

⇒ For the same length of arrays, half power beam-width of binomial array
is equal to that of uniform arrays
is less than that of uniform array
is more than that of uniform array
is negligible as compared to that of uniform array

⇒ In a single phase full wave converter (M - 2 connection) feeding a highly inductive load, the firing angle for each thyristor is a in the respective half cycle. The period of conduction of each thyristor is
p - a
p
p + a
p - 2a

⇒ In 8085 the address space size is
64 kbits
64 k bytes
32 kbits
16 k bytes

⇒ A thermocouple instrument can be used over a very wide frequency range.
TRUE
FALSE

⇒ If each stage has a gain of 10 dB and noise figure of 10 dB, then the overall noise figure of a two stage cascade amplifier will be
10
1.09
1
10.9

⇒ In amplitude modulation, carrier signals A cos ωt has its amplitude A modulated in proportion with message bearing (low frequency) signal m(t). The magnitude of m(t) is chosen to be __________ .
less than 1
less than or equal to 1
more than 1
none of these

⇒ An image uses 512 x 512 picture elements. Each of the picture elements can take any of the 8 distinguishable intensity levels. The maximum entropy in the above image will be
2097152 bits
786432 bits
648 bits
144 bits

⇒ Which of the following statement is false?
The gate of DMOSFET may be biased positively, zero or negatively
N-channel enhancement-only MOSFET conducts only when its gate is highly positive
JFET has lower input impedance than MOSFET
The bipolar base is forward biased, JFET gate must also be forward biased

⇒ Two capacitors of 2 μF and 4 μF capacitance are connected in series across a 30 V dc battery. After the capacitors have been charged, the voltage across them will be
15 V each
10 V and 20 V
20 V and 10 V
30 V each