Question is ⇒ Assertion (A): The expression E = - ΔV, where E is the electric field and V is the potential is not valid for time varying fields.Reason (R): The curl of a gradient is identically zero., Options are ⇒ (A) Both A and R are individually true and R is the correct explanation of A, (B) Both A and R are individually true but R is not the correct explanation of A, (C) A is true but R is false, (D) A is false but R is true, (E) , Leave your comments or Download question paper.

Question is ⇒ Assertion (A): The expression E = - ΔV, where E is the electric field and V is the potential is not valid for time varying fields.Reason (R): The curl of a gradient is identically zero., Options are ⇒ (A) Both A and R are individually true and R is the correct explanation of A, (B) Both A and R are individually true but R is not the correct explanation of A, (C) A is true but R is false, (D) A is false but R is true, (E) , Leave your comments or Download question paper. Previous question Next question


Q1.	Assertion (A): The expression E = - ΔV, where E is the electric field and V is the potential is not valid for time varying fields. Reason (R): The curl of a gradient is identically zero.
A.	Both A and R are individually true and R is the correct explanation of A [Wrong Answer]
B.	Both A and R are individually true but R is not the correct explanation of A [Correct Answer]
C.	A is true but R is false [Wrong Answer]
D.	A is false but R is true [Wrong Answer]
View Answer 1 -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 :

⇒

Match the following:

	List I (Functional components)		List II (Device)
A.	Error detector	1.	Three phase FHP Induction motor
B.	Servo motor	2.	Synchro transmitter and control transformer
C.	Amplifier	3.	Tacho generator
D.	Feed back	4.	Armature controlled FHP dc motor
		5.	Amplidyne

A-2, B-4, C-1, D-5
A-4, B-2, C-5, D-3
A-2, B-4, C-5, D-3
A-1, B-2, C-3, D-5

⇒ The magnetization 'm' of a superconductor in a field of H is
extremely small
- H
-1
Zero

⇒ The main difference between the broadside arrays and end fire arrays is that
individual elements are fed with same current in broadside arrays and of different magnitude in end fire arrays
in broadside arrays the elements are equidistant whereas in end fire array the distance between elements increases progressively
the total number of elements in broadside array is always one and a half times that of elements in end fire arrays
in broadside array the individual elements are fed in, out of phase by 180° whereas in end fire array individual elements are fed with currents of equal magnitude but their phases vary progressively along the line in such a way as to make the entire arrangement substantially unidirectional

⇒ When a constant voltage source and constant current source are in series, the current source is ineffective.
TRUE
FALSE

⇒ A minimum function has
poles and zeros on imaginary axis of s plane
no poles or zeros on imaginary axis of s plane
only poles but no zeros on imaginary axis of s plane
only zeros but no poles on imaginary axis of s plane

⇒ The purpose of providing groundings rings with MOSFET is to
avoid any stray voltage at the gate that may destroy SiO₂ layer
protect against any descaling
ground all eddy currents
protect against any physical injury

⇒ What is the length of SP (Stack pointer) of 8085 μp?
6 bits
8 bits
12 bits
16 bits

⇒ Consider the following statements : A clamper circuit

adds or subtracts a dc voltage to a waveform
does not change the waveform
amplifiers the waveform

Which are correct?
1, 2
1, 3
1, 2, 3
2, 3

⇒ In the above case the modulation index will be
9.6
28.8
57.6
100

⇒ Read the following statements about files in Pascal

A file can grow or shrink dynamically.
A file which consists of only characters is called text file.
Text files may be read and written using standard Pascal READ and WRITE procedures.
Every file must have a beginning but may or may not have an end.

Which of the above are correct?
All
1, 2, 3 only
2, 3, 4 only
1, 2 and 4 only

⇒ The logic performed by the high-noise immunity logic circuit shown belo
OR
AND
NOR
NAND

⇒ The inductance of a single layer solenoid of 10 turns is 5 μH. Which one of the following is the correct value of inductance when the number of turns is 20 and the length is doubled.
10 μH
20 μH
40 μH
5 μH

⇒ For addition and subtraction operations, phasors
must be represented in polar form
must be represented in rectangular form
may be represented in any form
none of the above

⇒ In a single phase full wave regulator feeding R-L load, the minimum firing angle can be zero.
TRUE
FALSE

⇒ In figure, the current I_{410 ∠0
5 ∠90°
5 ∠270°
10 ∠90°}

⇒ A pulse function having magnitude E and duration from t = 0 to t = a can be represented as
sum of two pulse functions
difference of two pulse functions
difference of two step functions each of magnitude E and one originating at t = 0 and the other at t = a
none of the above

⇒ A cycloconverter is
ac-dc converter
dc-ac converter
dc-dc converter
ac-ac converter

⇒

Match the following:

	List I (Instrument)		List II (Measured quantity)
A.	Hot wire	1.	only voltage
B.	PMMC	2.	phase
C.	Electrostatic	3.	true RMS value
D.	Lock in Amplifier	4.	dc value

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

⇒ The value of a in a transistor
is always equal to 1
is less than 1 but more than 0.9
is about 0.4
is about 0.1

⇒ In the DRAM cell in the figure is the V_t of the NMOSFET is 1 V. For the following three combinations of WL and BL volta
5 V, 3 V, 7 V
4 V, 3 V, 4 V
5 V, 5 V, 5 V
4 V, 4 V, 4 V

⇒ Four capacitors are in parallel. Their values are 36.3 μF, 3.85 μF, 34.002 μF and 850 μF with an uncertainty of digit in the last place. The total capacitance in significant figures is
75.0 μF
75.0 ± 0.1 μF
75.1 ± 0.1 μF
75.002 ± 0.1 μF

⇒ For the system of the given figure, the undamped natural frequency of closed loop pole
2 rad/sec
1 rad/sec
0.5 rad/sec
0.25 rad/sec

⇒ Which capacitor-store higher amount of energy?
Air capacitor
Paper capacitor
Mica capacitor
Plastic film capacitor

⇒ Which of the following identifiers is valid in Pascal?
THETA
NUM
1 ST
$ BETA

⇒ A magic tee is to be used as CW duplexer. Then port 1, port 2, port 3 (E arm), port 4 (H arm) respectively should be connected to
matched load, antenna, receiver and CW transmitter
CW transmitter, antenna, receiver and matched load
CW transmitter, receiver, antenna and matched load
CW transmitter, matched load, receiver and antenna

⇒ In intrinsic semiconductor the increase in conductivity per degree increase in temperature is about
0.02
0.06
0.15
0.25

⇒ In the given figure forward voltage wave has a magni
90 V
60 V
30 V
10 V

⇒ A carrier is simultaneously modulated by two sine waves having modulation indices of 0.4 and 0.3. The total modulation index will be
0.1
0.7
0.5
0.35

⇒ Which one most appropriate dynamic system?
y(n) + y(n - 1) + y(n + 1)
y(n) + y(n - 1)
y(n) = x(n)
y(n) + y(n - 1) + y(n + 3) = 0

⇒ The compensator of the given figure
lag compensator
lead compensator
lag-lead compensator
none of the above