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A full wave centre taped rectifier uses two crystal diode each having a forward resistance of 25 ohm. The rms value of secondary voltage fed between centered taped to each end of secondary is 48 volts and the load resistance is 1 kilo-ohm. find (i) d.c output voltage (ii) d.c output power (iii)peak inverse voltage (iv) rectification efficiency.

6 years ago


Answers : (1)


Dear student,

This rectifier circuit is called full-wave because it makes use of the entire waveform, both positive and negative half-cycles, of the AC source voltage in powering the DC load. As a result, there is less "ripple" voltage seen at the load. The RMS (Root-Mean-Square) value of the rectifier's output is also greater for this circuit than for the half-wave rectifier.

Use a voltmeter to measure both the DC and AC voltage delivered to the motor. You should notice the advantages of the full-wave rectifier immediately by the greater DC and lower AC indications as compared to the last experiment.


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B.Tech, IIT Delhi

6 years ago

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