List of top Biomedical Engineering Questions

Which of the following statements is correct?

[I.] All periodic signals are energy signals while aperiodic signals are power signals
[II.] Periodic signals have finite and non-zero average power
[III.] Both periodic and aperiodic signals have infinite power and energy
[IV.] All periodic signals are power signals while aperiodic signals are energy signals

The overall impulse response of the system shown in figure is given by (Block diagram provided: Input $X(n)$ splits. One path goes to $h_1[n]$, another to $h_2[n]$. The outputs of $h_1[n]$ and $h_2[n]$ are subtracted. This result is convolved with $h_3[n]$. Separately, $X(n)$ also goes to $h_5[n]$. The output of $h_3[n]$ and $h_5[n]$ are subtracted. This result is convolved with $h_4[n]$ to produce $y(n)$.)

Consider two signals $x(n)=\{0,1,1,2\}$ and $h(n)=\{a,b,c\}$. The signal $y(n)=x(n)\otimes h(n)$. The DFT of $y(n)$ is given as $Y(e^{j\omega})$. If $Y(e^{j0})$ is 36, then which of the following relation is correct?

A band-limited signal with a maximum frequency of 5 kHz is to be sampled. According to the sampling theorem, the sampling frequency which is not valid is

Calculate $V_{th}$ for the given circuit.

Nodal analysis is generally used to determine

Find the value of $V$ when the current in the 3 $\Omega$ resistor is 0. (Circuit diagram provided: A circuit with two voltage sources, 5V and V, and several resistors: 1$\Omega$, 2$\Omega$, 3$\Omega$, 4$\Omega$, 5$\Omega$. The 1$\Omega$ and 3$\Omega$ resistors are in the top branch. The 2$\Omega$ and 4$\Omega$ resistors are in parallel branches.)

For a voltage source to be neglected, the terminals across the source should be

Which law states that the current flowing into junction must be equal to the current flowing out of it?

What is the voltage across the inductor at $t=0$? (Circuit diagram provided: A 60V voltage source in series with a switch that closes at $t=0$, a 30 ohm resistor, and a 15H inductor.)