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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
Explanation:-
Answer : B Discuss it below : !! OOPS Login [Click here] is required to post your answer/result |
Also Read Similar Questions Below :
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T
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FALSE
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20000
2000
200
20
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frequency modulation
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0.3
0.23
0.17
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rectification efficiency will be more than 0.6 and TUF will be more than 0.35
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⇒ In a bridge rectifier circuit the rms value of input ac voltage is 10 V. The PIV across each diode is
7.07 V
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⇒ A two branch tuned circuit has a coil of resistance R and inductance L in one branch and capacitance C in the second branch. If R is increased, the dynamic resistance
increases
decreases
remains constant
may increases or decreases
⇒ To draw dc equivalent circuit for a CE amplifier circuit we should
Reduce all ac sources to zero
Open all capacitors
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⇒ A single phase half wave rectifier is feeding a resistive load. As firing angle is increased
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List I | List II | ||
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A. | Output of signal generator | 1. | Modulated |
B. | Error signal from a synchro | 2. | Digital |
C. | Output of a JK flip flop | 3. | Analog |
D. | Signal received by radar | 4. | Stoichastic |
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⇒ In ionosphere incidence angle is 60°. The maximum usable frequency f_{m} is equal to
2f_{c}
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3 f_{c}
⇒ In the circuit of figure the voltage across capacitor when switch is closed at t = &infin
0 V
20 V
very large
7.5 V
⇒ In binary data transmission DPSK is preferred to PSK because
a coherent carrier is not required to the generated at the receiver
for a given energy per bit, the probability for zero is less
the 180° phase shifts of the carrier
more protection is provided against impulse noise
⇒ In an R-L-C series circuit, R = 2/L/C . If R is doubled
the response will become underdamped
the response will become overdamped
the response will be critically damped
the response may be under damped or overdamped
⇒ A decoder can be used as a demultiplexer.
TRUE
FALSE
⇒ A discrete zero memory information source has 40 symbols and each symbol is equally likely. The minimum number of bits required to code the source with uniform length code and entropy of the source are
5 and 5.03
6 and 5.83
5 and 6.64
6 and 5.32
⇒ The current gain of a transistor is the ratio of
emitter current to base current
emitter current to collector current
collector current to base current
collector current to emitter current
⇒ In telephone, the dial tone has a frequency of
5 Hz
15 Hz
33 Hz
233 Hz
⇒ 10 in BCD code represent
10100
1100
10111
None of the above
⇒ The given figure shows a control system. The maximum value of gain for which the system is stabl
3
3
4
5
⇒ The r_{e} model equivalent circuit shown in figure is
CE amplifier
CC amplifier
CB amplifier
None of the above
⇒ In figure, the curre
is 2 A from A to B
is 2 A from B to A
depends on the value of R
none of the above