MCQOPTIONS
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MCQOPTIONS
| 1. |
A voltage source Vs = Vm sinωt is connected in series with a resistance R and an SCR. At some firing angle delay of α a positive gate pulse is applied to the SCR which turns on the SCR. Considering ideal conditions, at the instant α the voltage at the resistor terminals Vo |
| A. | falls to zero |
| B. | falls to –Vm sin α |
| C. | rises to Vm sin α |
| D. | rises to Vm sin ωt |
| Answer» D. rises to Vm sin ‚âà√¨‚àö¬¢t | |