Half Wave Rectifier

Q. Paragraph for below question
नीचे दिए गए प्रश्न के लिए अनुच्छेद

For the shown AC circuit, answer the following questions.
दर्शाए गए AC परिपथ के लिए, निम्नलिखित प्रश्नों के उत्तर दीजिए।



Phase difference between current and source voltage is
धारा तथा स्त्रोत वोल्टता के मध्य कलान्तर है

1. 60°
2. 45°
3. 90°
4. 30°

Q. Two electrons having charge $(-e)$ each are fixed at a distance $\text{‘2d’}$. A third charge proton placed at the midpoint is displaced slightly by a distance $\text{x (x<<d)}$ perpendicular to the line joining the two fixed charges. Proton will execute simple harmonic motion having angular frequency:
$(\text{m}=$ mass of charged particle)

1. ${\left(\frac{e^2}{2\pi {\epsilon }_{o}m{d}^3}\right)}^{1/2}$
2. ${\left(\frac{2e^2}{\pi {\epsilon }_{o}m{d}^3}\right)}^{1/2}$
3. ${\left(\frac{2\pi {\epsilon }_{o}m{d}^3}{e^2}\right)}^{1/2}$
4. ${\left(\frac{\pi {\epsilon }_{o}m{d}^3}{2e^2}\right)}^{1/2}$

Q. A half wave rectifier rectifies half cycle of the input ac signal.

1. False
2. True

Q. A sinusoidal voltage of peak value $200\text{V}$ 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 $R$ in volts is approximately

1. $200$
2. $100$
3. $100\sqrt{2}$
4. $283$