Question is ⇒ A leaky dielectric has ∈r = ∈r' - j∈r". If a field E is applied, the current component in phase with E is proportional to ∈r"., Options are ⇒ (A) TRUE, (B) FALSE, (C) , (D) , (E) , Leave your comments or Download question paper.

Question is ⇒ A leaky dielectric has ∈r = ∈r' - j∈r". If a field E is applied, the current component in phase with E is proportional to ∈r"., Options are ⇒ (A) TRUE, (B) FALSE, (C) , (D) , (E) , Leave your comments or Download question paper. - j∈_r^". If a field E is applied, the current component in phase with E is proportional to ∈_r^"., Options are ⇒ (A) TRUE, (B) FALSE, (C) , (D) , (E) , Leave your comments or Download question paper. '/> - j∈_r^". If a field E is applied, the current component in phase with E is proportional to ∈_r^"., Options are ⇒ (A) TRUE, (B) FALSE, (C) , (D) , (E) , Leave your comments or Download question paper. '/>Previous question Next question


Q1.	A leaky dielectric has ∈_r = ∈_r^' - j∈_r^". If a field E is applied, the current component in phase with E is proportional to ∈_r^".
A.	TRUE [Correct Answer]
B.	FALSE [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 :

⇒ Symmetrical square wave of time period 100 μs can be obtained from square wave of time period 10 μs by using
divide by 5 circuit
divide by 2 circuit
divide by 5 circuit followed by divide by 2 circuit
BCD counter

⇒ The power gain of a half-wave dipole with respect to an isotropic radiator is
2.15 db
3 db
4.15 db
6 db

⇒ Feedback factor may be less or more than 1.
TRUE
FALSE

⇒

Assertion (A): Potentiometers can not be used as error detectors in position control systems.

Reason (R): The resolution of a potentiometer places an upper limit on its accuracy

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
R is correct but A is wrong

⇒ In a varistor the v-i graph is linear.
TRUE
FALSE

⇒ To couple a coaxial line to a parallel wire line, it is best to use a
balun
slotted line
quarter wave transformer
directional coupler

⇒ The signal cos ω_ct + 0.5 cos ω_mt sin ω_ct is
FM only
AM only
both AM & FM
neither AM nor FM

⇒ Which of the following oscillators is used for the generation of high frequencies?
R-C phase shift oscillator
Wien bridge oscillator
L-C oscillator
Blocking oscillator

⇒ Hysteresis loss in a transformer working at 220 V and at a frequency of 50 Hz is 100 W. When the transformer is operated at 220 V and at a frequency of 100 Hz, what is the hysteresis loss?
50 W
100 W
200 W
400 W

⇒ An RC coupled amplifier has an open loop gain of 200 and a lower cutoff frequency of 50 Hz. If negative feedback with β = 0.1 is used, the lower cut off frequency will be
about 50 Hz
about 5 Hz
about 2.38 Hz
about 70.5 Hz

⇒ In a synchro transmitter
input is angular position of rotor shaft and output is stator voltages
input is stator voltages and output is angular position of shaft input is rotor voltage and output is angular position of rotor shaft
input is rotor voltage and output is angular position of rotor shaft
input is angular position of rotor shaft and output is rotor voltage

⇒ Binary 1111 when subtracted from binary 11111 is
101110
10110
10000
100010

⇒ A balun should have
low SWR at both ports
high SWR at both ports
high SWR at input port and low SWR at output port
low SWR at input port and high SWR at output

⇒

Match the following:

	List I		List II
A.	Direct addressing	1.	MOV A, M
B.	Register addressing	2.	MOV C, A
C.	Register indirect addressing	3.	LDA 7
D.	Immediate addressing	4.	STA FFC

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

⇒ A periodic voltage v(t) = 1 + 4 sin ωt + 2 cos ωt is applied across a 1 ohm resistance. The power dissipated is
1 W
11 W
21 W
24.5 W

⇒ The waveform shown in the given Figure can be written
v(t) = u(t - 1) + u(t - 2) + u(t - 3) + u(t -4)
v(t) = u(t - 1) + u(t - 2) + u(t - 3) + u(t -4) - u(t - 5)
v(t) = u(t - 1) + u(t - 2) + u(t - 3) + u(t -4) - 4u(t - 5)
v(t) = u(t - 1) + u(t - 2) + u(t - 3) + u(t -4) + 4u(t - 5)

⇒ The power input and output in a device are 3650 W and 3385 W with each reading in doubt by ± 10 W. The percentage uncertainty in losses is
± 7.55%
± 3.77%
± 11.32%
± 15.09%

⇒ To draw ac equivalent circuit for a CE amplifier we should
Reduce all dc sources to zero
Short all capacitors
Reduce all dc sources to zero and short all capacitors
Reduce all dc sources to zero and open all capacitors

⇒

Assertion (A): The number ∈ such that the probability that an error is between -∈ and + ∈ is 1 is called probable error of single obserevation.

Reason (R): The standard deviation is the arms value of the deviation from the arithmetic mean.

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 true, R is false
A is false, R is true

⇒ The equation sin (z) = 10 has
no real or complex solution
exactly two distinct complex solutions
a unique solution
an infinite number of complex solutions

⇒ If a fuse is higher than required current rating is employed in a circuit, it will
blow more frequently since it carries more current
afford better protection to the circuit
seriously overload the circuit
lead to larger maintenance cost

⇒ It is difficult to write a program in a machine language.
TRUE
FALSE

⇒ A p-n junction diode has
low forward and high reverse resistance
a non-linear v-i characteristics
zero forward current till the forward voltage reaches cut in value
all of the above

⇒ In active filter circuits, inductances are avoided mainly because they
are always associated with some resistance
are bulky and unsuitable for miniaturisation
are non-linear in nature
saturate quickly

⇒ If the number of information bits is m, the number of parity bits p in the Hamming code is given by equation
2^p = m + p + 1
2^p ≥ m + p + 1
2^P = m + p
2^p ≥ m + p

⇒ Start and stop bit do not contain any information but are used in serial communication for
error correction
error detection
synchronization
slowing down the communication

⇒ A 6 MHz channel is used by a digital signalling system initializing four-level signals. The maximum possible transmission rate is
6M bands/s
12M bands/s
6 M bits/s
12M bits/s

⇒ The counter shown in the given figure
Synchronous
Johnson
Ring
None of the above

⇒ For wired AND connection we should use
TTL gates with active pull up
TTL gates with open collector
TTL gates without active pull up and with open collector
any of the above

⇒ The Thevenin Resistance of the circui
94/7 kΩ
54/7 kΩ
7/54 kΩ
0