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The figure shows the circuit diagram of a rectifier. The load consists of a resistance 10 Ω and an inductance 0.05H connected in series. Assuming ideal thyristor and ideal diode, the thyristor firing angle (in degree) needed to obtain an average load voltage of 70V is ____________.
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- 69.3
- 39.39
- 19.93
- None of the above
Correct Option: A
V0 = 70v; Load, R = 10Ω ; L = 0.05H
Firing angled = ?
The o/p volt of given converter is
| V0 = | [1 + cosα] | |
| 2π |
| 70 = | [1 + cosα] | |
| 2π |
α = 69.3°
