0 votes
0 answers
761
0 votes
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774
The two signals $S1$ and $S2$, shown in figure, are applied to $Y$ and $X$ deflection plates of an oscilloscope.The waveform displayed on the screen is
0 votes
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779
0 votes
0 answers
783
The driving point impedance $Z(s)$ for the circuit shown below is$\dfrac{s^4+3s^2+1}{s^3+2s} \\ $$\dfrac{s^4+2s^2+1}{s^2+2} \\ $$\dfrac{s^2+1}{s^4+s^2+1} \\$$\dfrac{s^3+1...
0 votes
0 answers
785
For the signal $f(t)=3 \sin8 \pi t+6 \sin 12\pi t+ \sin14\pi t$ , the minimum sampling frequency (in $Hz$) satisfying the Nyquist criterion is _________.
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786
In a synchronous machine, hunting is predominantly damped bymechanical losses in the rotoriron losses in the rotorcopper losses in the statorcopper losses in the rotor
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793
Let $\nabla .(fv)=x^2y+y^2z+z^2x$ , where $f$ and $v$ are scalar and vector fields respectively. If $v=yi+zj+xk$ then $v.\Delta f$ is$x^2y+y^2z+z^2x$$2xy+2yz+2zx$$x+y+z$...
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800