Question

If the rms value of sinusoidal input to a full wave rectifier is $\frac{V_0} { \sqrt{2}}$ then the rms value of the rectifier’s output is

• A. $\frac {V_0} { \sqrt{2}}$
• B. $\frac {V_0^2 }{ \sqrt{2}}$
• C. $\frac{V_0^2} { 2}$
• D. $ \sqrt{2} V_0^2$
• E. $2V_0^2$

Answer 1

Answer: (A)

Given,
Input $V_{ rms }=\frac{V_{0}}{\sqrt{2}}$
Where, $V_{0}=$ Peak value of voltage
In full wave rectifier, the whole cycle is rectified, so the value of input voltage will be same as output.

So, the output voltage will be $\frac{V_{0}}{\sqrt{2}}$,