help me question on circuits?

2015-01-12 11:59 am

where would a variable resistor be used in everyday life? i rlly need to know answer quicks

回答 (3)

2015-01-12 12:09 pm

✔ 最佳答案

Light dimmer, Loudness control formally called a volume control.

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2015-01-13 5:09 am

with today's electronics such dissipative methods are no longer used ...just pots are used for analog reference signals....

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2015-01-12 12:04 pm

Volume on a music device or shading on a lamp. Many other things that involve variation.

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