Engine : Electricity - 901/1386
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| The component labeled 'CR1' in the circuit shown in the illustration serves what functional purpose? EL-0085 |
| A) it establishes a constant reference voltage for the base of 'Q1' |
| B) it acts as a low capacitive reactance to smooth ripple |
| C) it varies its anode/cathode polarity depending on 'RL' current |
| D) it rectifies the varying voltage from the collector of 'Q1' |
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Illustration EL-0085
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