A waveform shown is applied to the following | vedclass

Name: Exam Paper Generator | JEE NEET Paper Generator | Vedclass
Brand: Vedclass
Rating: 5 (35 reviews)

Question

(D) The $P-N$ junction diode will conduct only when it is forward-biased. Looking at the circuit, the diode is oriented such that it conducts when the

Vedclass · Accepted Answer

Vedclass · Answer

(D) The $P-N$ junction diode will conduct only when it is forward-biased. Looking at the circuit, the diode is oriented such that it conducts when the input voltage $V_{in}$ is negative (specifically $-5\,V$).When $V_{in} = -5\,V$, the diode acts as a short circuit (ideal).The circuit then becomes a voltage divider with two equal resistors $R_1$ and $R_2$ in series across the source voltage of $5\,V$ (magnitude).The output voltage $V_0$ across $R_2$ is given by the voltage divider rule:$V_0 = V_{in} 	imes \frac{R_2}{R_1 + R_2}$Since $R_1 = R_2$, we have:$V_0 = -5\,V 	imes \frac{R_2}{R_2 + R_2} = -5\,V 	imes \frac{R_2}{2R_2} = -5\,V 	imes 0.5 = -2.5\,V$.Therefore, the output waveform will show a negative pulse of $-2.5\,V$ during the interval when the input is $-5\,V$.

$A$ waveform shown is applied to the following circuit. Assuming an ideal diode configuration and $R_1 = R_2$, which of the following output waveforms will be produced?

Similar Questions

$A$ sinusoidal voltage of peak value $200\,V$ is connected to a diode and resistor $R$ in the circuit shown,so that half-wave rectification occurs. If the forward resistance of the diode is negligible compared to $R$,the rms value of voltage across $R$ is approximately (in volt):

The value of the form factor in the case of a half-wave rectifier is

In the diagram,the input is across the terminals $A$ and $C$ and the output is across the terminals $B$ and $D$,then the output is

If the output frequency of a full-wave rectifier is $100 \text{ Hz}$, then the input frequency will be . . . . . . . (in $\text{ Hz}$)

$A$ diode detector is used to detect an amplitude modulated wave of $60\%$ modulation by using a condenser of capacity $250\, pF$ in parallel with a load resistance $100\, k\Omega$. Find the maximum modulated frequency which could be detected by it.

Vedclass Test Series

Exam Paper Generator

Online Exam Module