Question is ⇒ The gradient of any scalar field always yields __________ ., Options are ⇒ (A) a solenoidal field, (B) a conservative field, (C) an irrotational field, (D) none of these, (E) , Leave your comments or Download question paper.

Question is ⇒ The gradient of any scalar field always yields __________ ., Options are ⇒ (A) a solenoidal field, (B) a conservative field, (C) an irrotational field, (D) none of these, (E) , Leave your comments or Download question paper. Previous question Next question


Q1.	The gradient of any scalar field always yields __________ .
A.	a solenoidal field [Wrong Answer]
B.	a conservative field [Correct Answer]
C.	an irrotational field [Wrong Answer]
D.	none of these [Wrong Answer]
View Answer 2 -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 baud rate is
always equal to the bit transfer rate
equal to twice the bandwidth of an ideal channel
not equal to the signalling rate
equal to one half the bandwidth of ideal channel

⇒ The resonant frequency of an R_F amplifier is 1 MHz and its bandwidth is 10 kHz. The Q factor will be
10
100
0.01
0.1

⇒ Kirchoff's voltage law is not valid for a non-linear network
the statement is true
the statement is false
can't say
none of the above

⇒ A thyristor has its gate current zero. To start conduction the forward voltage must exceed
about 0.5 V
forward breakover voltage
on state voltage
peak working off state forward voltage

⇒ Point out the false statem
Building, for the time, a body-stabilized geosynchronous communication satellite with its own apogee propulsion and control systems
Attitude control and station management operations for a geostationary satellite
Building launching rocket Ariane for putting APPLE in orbit
Domestic communications on an experimental basis

⇒ The region between a pin of parallel perfectly conducting planes of infinite extent is y and z directions is partially filled with a dielectric as shown be
-2
2
0
1

⇒ A capacitor input filter relies on
average detection
peak detection
both (a) and (b)
neither (a) nor (b)

⇒ An m derived and constant k filter section connected in cascade give
proper impedance matching
proper phase shift characteristic
proper attenuation characteristic
all of the above

⇒ A frequency doubler has an FM signal input at 13 MHz with a deviation of 5 kHz. The output, frequency for the carrier will be
26 MHz
26.1 MHz
10 kHz
160 kHz

⇒ The input voltage for starting oscillations in an oscillator is caused by
negative feedback
positive feedback
noise voltage in resistors
a special generator

⇒ In figure the diode is ideal (zero cut in voltage zero forward resistance). Then the current through diod
0
0.166666666666667
0.0416666666666667
none of the above

⇒ The typical squelch circuit
cuts off IF amplifier when AGC is minimum
cuts off IF amplifier when AGC is maximum
cuts off audio amplifier when carrier is absent
eliminates RF interference when signal is weak

⇒ A balanced modulator is used in the generation of which of the following?
DSB-SC signal
FM signal
PM signal
PAM signal

⇒ The input to integrating op-amp is a rectangular wave. The output will be
a sine wave
a rectangular wave
a triangular wave
none of the above

⇒ Which of the following devices is a 'hot-electron' diode?
Thermionic tube diode
Schottky-Barrier diode
Thomson-Deletion diode
Thermal electron diode

⇒

Assertion (A): The behaviour of FET is similar to that of a pentode.

Reason (R): FETs and vacuum triode are voltage controlled devices.

Both A and R are true and R is correct explanation of A
Both A and R are true but R is not a correct explanation of A
A is true but R is false
A is false but R is true

⇒ The output impedance of an ideal op-amp is
zero
low
high
infinite

⇒ The storage battery used in power stations and substations is generally
nickel cadmium battery
lead acid battery
zinc carbon battery
zinc carbon or lead acid battery

⇒ Bit is a unit of
entropy
information
channel capacity
rate of information

⇒ When a p-n junction is forward biased, the current remains zero till the applied voltage overcomes the barrier potential.
TRUE
FALSE

⇒ Find equivalent resistance. Each resistance is l &Om
5/12 Ω
5/6 Ω
6/5 Ω
6/10 Ω

⇒ In a metal the probability of a state 0.1 eV below Fermi level being occupied
is more than the probability of state 0.1 eV above Fermi level being occupied
is the same as the probability of state 0.1 eV above Fermi level being occupied
is less than the probability of state 0.1 eV above Fermi level being occupied
may be equal to or more or less than the probability of state 0.1 eV above Fermi level being occupied

⇒ At very high temperatures the extrinsic semi conductors become intrinsic because
drive in diffusion of dopants and carriers
band to band transition dominants over impurity ionization
impurity ionization dominants over band to band transition
band to band transition is balanced by impurity ionization

⇒ In applications where __________ input resistance is needed, the JFET is preferred to the bipolar transistor.
zero
very low
low
high

⇒ For a circular wave guide
cutoff frequency for TE₁₀ and TE₀₁ modes are same
cutoff frequency for TE₁₀ and TE₀₁ modes are different
cutoff frequency for TE₁₀ mode = twice the cutoff frequency for TE₂₀ mode
cutoff frequency for TE₁₀ mode = haf the cutoff frequency for TE₂₀ mode

⇒ A CE amplifier has a high input signal. In the wave shape of emitter current
positive and negative half cycles will be symmetrical
positive half cycle will be elongated and negative half cycle will be compressed
positive half cycle will be compressed and negative half cycle will be elongated
the half cycles may be either elongated or compressed

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

⇒ Intel 2004 is a
ROM
Volatile RAM
NV RAM
None of the above

⇒ The Y plates of a CRO are excited by a voltage 2 sin 100 t and the X plates are not connected. The display would be
a vertical line
a horizontal line
sine wave
slant line

⇒ Which of the following can be operated with positive as well as negative gate voltage?
JFET
Both JFET and MOSFET
MOSFET
Neither JFET nor MOSFET