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Schering bridge is used to measure | |
A. | capacitance and dielectric loss [Correct Answer] |
B. | inductance [Wrong Answer] |
C. | resistance [Wrong Answer] |
D. | mutual inductance [Wrong Answer] |
View Answer
Explanation:-
Answer : A Discuss it below : !! OOPS Login [Click here] is required to post your answer/result |
Also Read Similar Questions Below :
⇒ If F_{n} represents Fourier series coefficient of f(t), then Fourier series coefficient of f(t + t) =
F_{n}e ^{-jω}_{0}^{t}
F_{n}e ^{jω}_{0}^{t}
F_{n}e ^{jnω}_{0}^{t}
F_{n}e ^{-jnω}_{0}^{t}
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⇒ A moving iron instrument gives correct reading when used at
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high frequencies
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⇒ As B is increased from zero to about 2T, μ_{r}, of a ferromagnetic material
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⇒ The current rating of dc tachogenerator is usually
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⇒ In a vibrating reed frequency meter the natural frequency of two adjacent reeds have a difference of
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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
⇒ If F_{n} represents Fourier series coefficient of f(t), then Fourier series coefficient of f(t + t) =
F_{n}e ^{-jω}_{0}^{t}
F_{n}e ^{jω}_{0}^{t}
F_{n}e ^{jnω}_{0}^{t}
F_{n}e ^{-jnω}_{0}^{t}
⇒ In a positive edge triggered JK flip flop, J = 1, K = 0 and clock pulse is rising Q will
be 0
be 1
show no change
toggle
⇒ A moving iron instrument gives correct reading when used at
low frequencies
high frequencies
only one frequency
all frequencies upto a certain value
⇒ As B is increased from zero to about 2T, μ_{r}, of a ferromagnetic material
increase
decrease
first increases then decreases
remains the same
⇒ The current rating of dc tachogenerator is usually
small
high
medium
either (b) or (c)
⇒ In a vibrating reed frequency meter the natural frequency of two adjacent reeds have a difference of
0.25 Hz
0.5 Hz
1.25 Hz
1 Hz
⇒ A dc chopper V = 500 V feeds an electric fraction dc series motor. The chopping frequency is 400 Hz. The series inductance required to limit the maximum current swing to 10 A is
20 mH
about 31 mH
about 51 mH
about 92 mH
⇒ Magnetic flux density has the dimensions
MI^{-1}T^{-2}
M^{-1}I^{-2}T^{-2}
ML^{-3}T^{-2}
MI^{-1}T^{-3}
⇒ The cut off wavelength λ_{c} for TE_{20} mode for a standard rectangles waveguide is
2/a
2a
a
2a^{2}
⇒ Henry is equivalent to
Volts/Ampere
Weber/Volt
Weber/Ampere
Weber/Ampere^{2}
⇒ When a lead acid battery is fully charged the colours of its positive and negative plates are
grey and dark brown
dark grey and brown
grey and brown
dark brown and grey
⇒ The output wave of a cycloconverter consists of a number of segments derived from the input wave.
TRUE
FALSE
⇒ ROC of sequence x[n] = (3)^{n} ∪[n] + (4)^{n} ∪[- n - 1]
|z| > 4
3 < |z| < 4
|z| < 4
|z| > 3
⇒ The input resistance of JFET ideally approaches
zero
1 ohm
100 ohm
infinity
⇒ If the absolute value of a number is less than decimal 1, the sign of exponent in floating point representation is
zero
negative
zero or negative
positive
⇒
Match the following:
List I | List II | ||
---|---|---|---|
A. | Serial Binary adder | 1. | (2n - 1)t_{pd} |
B. | Ripple carry adder | 2. | (n - 1)t_{pd} |
C. | Carry look ahead binary adder | 3. | Operation time independent of size |
4. | 6t_{pd} for 4 bit carry look ahead adder |
A-2, B-1, C-3
A-2, B-1, C-4
A-1, B-2, C-4
A-1, B-2, C-3
⇒ When R and L are connected in parallel, R > |Z|.
TRUE
FALSE
⇒ The first column of a Routh arra
2
3
4
5
⇒ The nodal method of circuit analysis is based on
KVLs, ohm law
KCLs, ohm law
KCLs, KVL
KCL, KVL, ohms law
⇒ In spread spectrum technique
a modulated signal is modulated again
a modulated signal is modulated twice again
the power of a modulated signal is increased
the noise component of a modulated signal is decreased
⇒ (9)_{11} x (9)_{13} x(9)_{15} = (?)_{16}
933
2D9
339
9AB
⇒ The mean life time of the minority carriers is in the range of a few
seconds
milli seconds
micro seconds
nano seconds
⇒ A voltage doubler circuit is fed by a voltage V_{m} sin ωt. The output voltage will be nearly 2 V_{m} only if
load resistance is small
load resistance is large
load resistance is neither small nor large
either (a) or (c)
⇒ For type 1 system the velocity lag error is
inversely proportional to bandwidth of system
directly proportional to gain constant
inversely proportional to gain constant
independent of gain constant
⇒ A parallel plate capacitor having C = 200 x 10^{-12} F has loss dielectric having tan δ = 4 x 10^{-4}. At an ac voltage of f = 10^{6} Hz and peak value 2 V, the dielectric losses are
10^{-8} W
10^{-6} W
10^{-4} W
10^{-2} W
⇒ A two port network is symmetrical if
z_{11} z_{12} - z_{12} z_{21} = 1
AD - BC = 1
h_{11} h_{22} - h_{12} h_{41} = 1
y_{11} y_{22} = y_{12} y_{21} = 1
⇒ A signal having uniformly distributed amplitude in the interval (- V to + V) is to be encoded using PCM with uniform quantization. The signal to quantization noise ratio is determined by
dynamic range of signal
sampling rate
number of quantizing levels
power spectrum of signal
⇒ If f_{1} (t) and f_{2} (f) are two functions of time and a and b are constants, then
L [af_{1}(t) + bf_{2}(t)] = aF_{1}(s) + bF_{2}(s)
L [af_{1}(t) + bf_{2}(t)] = aF_{1}(s) - bF_{2}(s)
L [af_{1}(t) + bf_{2}(t)] =[aF_{1}(s)]/[bF_{2}(s]
None of the above
⇒ If σ is standard deviation, variation is
σ - 1
σ^{1.5}
σ^{2}
σ^{3}
⇒
Assertion (A): When the performance of a stable second order system is improved by a PID controller, the system may become unstable.
Reason (R): PID controller increases the order of the system to 3.
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