A diode is connected to 220 , V (rms) ac in s | vedclass

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

Question

(C) The diode $D$ conducts during the positive half-cycle of the $ac$ supply because it is forward-biased. During the negative half-cycle,it is revers

Vedclass · Accepted Answer

$311.1$

Vedclass · Answer

(C) The diode $D$ conducts during the positive half-cycle of the $ac$ supply because it is forward-biased. During the negative half-cycle,it is reverse-biased and does not conduct. The capacitor charges to the peak value of the input voltage during the positive half-cycle. The peak voltage $V_0$ is given by $V_0 = V_{rms} 	imes \sqrt{2} = 220\sqrt{2} \, V$. Since there is no load resistor to discharge the capacitor,it remains charged to the peak voltage $V_0 = 220\sqrt{2} \, V$. However,if we consider the average $DC$ output voltage for a half-wave rectifier,$V_{dc} = \frac{V_0}{\pi} = \frac{220\sqrt{2}}{\pi} \approx 99 \, V$. Given the options provided,the question likely refers to the peak voltage or a specific $RMS$ interpretation. Re-evaluating the standard interpretation for this specific textbook problem,the capacitor charges to the peak voltage $V_0 = 220\sqrt{2} \approx 311.1 \, V$. Thus,option $(C)$ is the correct answer.

$A$ diode is connected to $220 \, V$ $(rms)$ $ac$ in series with a capacitor as shown in the figure. The voltage across the capacitor is..... $V$

Similar Questions

$A$ full-wave rectifier supplies a load of $1 \ k\Omega$. The $a.c.$ voltage applied to the diode is $220 \ V_{rms}$. If the diode resistance is neglected,the value of the ripple voltage $(rms)$ is .... $V$.

The figure shows the current as a function of time at the output of a full-wave rectifier. The average value of this current is:

$A$ full-wave rectifier circuit with diodes $D_1$ and $D_2$ is shown in the figure. If the input supply voltage is $V_{in} = 220 \sin(100 \pi t) \ V$, then at $t = 15 \ ms$:

Explain the use of the junction diode as a half-wave rectifier by drawing a circuit and draw input and output waves.

Vedclass Test Series

Exam Paper Generator

Online Exam Module