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A single turn loop is situated in air, with a uniform magnetic field normal to its plane. The area of the loop is 5 m^{2} and the rate of change of flux density is 2 Wb/m^{2}/s. What is the emf appearing at the terminals of the loop? | |
A. | -5 V [Correct Answer] |
B. | -2 V [Wrong Answer] |
C. | -0.4 V [Wrong Answer] |
D. | 0 V [Wrong Answer] |
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Explanation:-
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RC impedance
RL impedance
RLC impedance
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⇒ If the thermal resistance of a transistor is lower it means
higher junction temperature
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L_{1} + L_{2} + M
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homogeneity condition
superposition condition
both (a) and (b)
associative condition
⇒ Microprocessor 386SX is a 16/32 bit microprocessor. It has
16 bit registers and 32 bit data bus
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⇒ Modulation index of a AM wave is measured using oscilloscope. The display on the CRO is as shown in figure it can be concluded t
the output wave is distorted
the output wave is under modulated
the modulation index is 100%
the modulation index is 50%
⇒ In a rectangular waveguide
the broad width is generally labelled 'a' and height 'b'
the broad width is generally labelled 'b' and height 'a'
any one of the dimensions may be labelled 'a' and the other 'b'
the length is labelled as 'a'
⇒ Cells are connected in series to increase
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both voltage and current rating
the life of cell
voltage rating
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halved
kept the same
doubled
made 4 times
⇒ A generator with an internal resistance of 600 Ω drives an amplifier whose input resistance is 400 Ω. The generator's open circuit voltages is 1 mV; the amplifier develops 100mV across an 8kΩ load. The input voltage to the amplifier is
0.1 m V
0.4 m V
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⇒ For static electric and magnetic fields in an homogenous source-free medium, which of the following represents the correct form of Maxwell's equations?
Δ.E = 0
Δ.E = 0
Δ x E = 0
Δ x E = 0
⇒ Which of the following is used as switch?
J-K flip-flop
Master slave J-K flip-flop
T-flip-flop
D-flip-flop
⇒ The output of a Piezoelectric crystal has
low amplitude and low impedance
high amplitude and low impedance
low amplitude and high impedance
high amplitude and high impedance
⇒ Quantization noise occurs in
PAM
DM
PWM
PPM
⇒ If operator 'a' = 1 ∠120° then (1 + a + a^{2}) =
-a
-a^{2}
1
0
⇒ An electromagnetic wave incident on a perfect conductor is
fully transmitted
partially transmitted
entirely reflected
none of the above
⇒ In any network of linear impedances the current flowing at any point equal to algebric sum of currents caused to flow at that point by each of the emf taken separately with all other emfs reduced to zero. The statement represents.
KCL
Norton's theorem
Thevenin's theorem
Superposition theorem
⇒ A discrete LTI system is non-casual if its impulse response is
a^{n} ∪(n - 2)
a^{n-2} ∪(n)
a^{n+2} ∪(n)
a^{n} ∪(n + 2)
⇒ In a P type silicon sample, the hole concentration is 2.25 x 10^{15} / cm^{3}. If the intrinsic carrier concentration is 1.5 x 10^{10}/ cm^{3} the electron concentration is
zero
10^{10}/cm^{3}
10^{5}/cm^{3}
1.5 x 10^{25}/cm^{3}
⇒ A direct current can be measured
directly by dc potentiometer
by dc potentiometer in conjunction with a standard resistance
by dc potentiometer in conjunction with volt ratio box
none of the above
⇒ A single phase half wave converter is feeding a resistive load. Just before triggering, the voltage across thyristor is
zero
about 1 V
same as input voltage
twice the input voltage
⇒ In a simple on-off controller with differential gap, the magnitude of differential gap determines
the level of accuracy
the life of controller
both (a) and (b)
neither (a) nor (b)
⇒ PWM can be generated
by a free running multivibrator
by integrating the signal
by a monostable multivibrator
by differentiating pulse position modulation
⇒ In the circuit shown, the device connected to Y5 can have address in the r
2000 - 20FF
2D00 - 2DFF
2E00 - 2EFF
FD00 - FDFF