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The figure shows the circuit of a rectifier fed from a 230-V (rms), 50-Hz sinusoidal voltage source. If we want to replace the current source with a resistor so that the rms value of the current supplied by the voltage source remains unchanged, the value of the resistance (in ohms) is __________ (Assume diodes to be ideal.)
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- 20
- 21
- 22
- 23
Correct Option: D
Vs = 230 V, 50Hz
The rms volt of given Rectifier Vor = Vs
∴ Vor = 230 V
| Ior = | ||
| R |
| ∴ R = | = | ||
| Ior | 10 |
∴ R = 23 Ω
