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how can we vary the intensity of light coming out of the lamp? how to implement it using simple circuitry. Answered

I am basically a beginner to electronics. Is it through potentiometer..by varying resistance and in turn varying voltage

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avocadostains

4 years ago

Yes. That's exactly how the cheaper old style dimmers work. They are the simplest. Then I think there are ones called switching regulators which turn the circuit on and off rapidly, then there are variable transformers. At least that's what i gathered from this site: http://home.howstuffworks.com/dimmer-switch.htm

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mpilchfamilysandiri

Answer 5 years ago

OK to be more specific is this an AC or DC lamp? A simple AC dimmer switch is all you need for a lamp running on AC. You can find schematics online for simple DC dimmer circuits.d