Prepare for ISRO ICRB examinations with verified solutions covering Algorithms, Theory of Computation, Compiler Design, Computer Architecture, OS, Discrete Mathematics, and Computer Networks.
Marking scheme: +3.00 positive, -0.75 negative (ICRB Standard).
What is the division factor of the following clock divider circuit?
For the circuit given below, the voltage Vo across the op-amp output is:
The rms value of current $i(t) = I_1\sin\omega t + I_2\sin 2\omega t$ is:
Given the output for the following non-inverting summing amplifier, the relation between Rf and R in the circuit is:
$$V_o = \{V_1 + V_2 + V_3 + V_4\} / 2$$
A pulse signal having 100 kHz frequency and 70 nsec rise time is to be measured on an oscilloscope. The minimum required bandwidth of the oscilloscope is,
Multiple collectors are used in Traveling Wave Tube (TWT) to:
A lossless antenna has directional gain $G(\theta,\phi)$, then $\int_{\phi=-\pi/2}^{\pi/2}\int_{\theta=-\pi/2}^{\pi/2} G(\theta,\phi)\,d\Omega$ is :
$\sqrt[3]{\cos x - j\sin x}$ is equal to
If $f(t)$ is 1 MHz sinusoid with 1 Vp-p and sampling frequency fs is 25KHz, the output will be :
For a practical low pass filter, the ideal amplitude and phase response will be :
A 10dB attenuator is put at the input of a low noise amplifier having 3dB noise figure. Now the noise figure of the cascaded amplifier will be
A 33.33% duty cycle rectangular wave is fed to the input of an Spectrum Analyzer. What will be observed?
Phase function of a filter is $\phi(f) = k f^2$, $k > 0$. The group delay of the filter has the shape
1V p-p sinusoid is digitized by a 4 bit A-to-D converter with input dynamic range of 2V p-p. The signal to noise ratio of the digitized signal is: