Engine : Electricity - 886/1386
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| A silicon controlled rectifier (SCR) is a solid state device used for what functional purpose? |
| A) functions like an amplifier and controls relatively high load current |
| B) functions like a switching device and controls relatively high load current |
| C) functions like an amplifier and controls relatively low load current |
| D) functions like a switching device and controls relatively low load current |
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