Statement-I : To get a steady dc output from the pulsating voltage received from a full wave rectifier we can connect a capacitor across the output parallel to the load RL.
Statement-II : To get a steady dc output from the pulsating voltage received from a full wave rectifier we can connect an inductor in series with RL.
In the light of the above statements, choose the most appropriate answer from the options given below :
Statement-II : To get a steady dc output from the pulsating voltage received from a full wave rectifier we can connect an inductor in series with RL.
In the light of the above statements, choose the most appropriate answer from the options given below :
- (A)Statement I is false but Statement II is true
- (B)Statement I is true but Statement II is false
- (C)Both Statement I and Statement II are true✓ Correct
- (D)Both Statement I and Statement II are false
Answer: (C)
Solution
A capacitor placed in parallel with the load charges on the voltage peaks and discharges as the rectified voltage falls, holding the output nearly steady, so Statement I is correct. An inductor in series with the load opposes changes in current through its back-emf , smoothing the current and hence the output, so Statement II is correct. Both are standard filters for the output of a full-wave rectifier, so Statement I and Statement II are both true.
JEE Main · 2021 · 31 Aug 2021 · Shift 2 · Single correct option