Questions tagged [polarity]

Polarity is a conceptual entity. Pole means a direction. However, an object is called as "having polarity" or "having specific polarity" means a preference to a differential-behavior of something in forward and backward direction.

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Detecting polarity in a DC device [closed]

I have a device which can be charged with 5v DC. I wish to locate an adaptor for it, but not knowing the device's polarity, I'm stuck. Please note: The device requires 5v DC but has no polarity ...
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consumer will not know doorbell polarity, which component to auto regulate and stepdown

Joe consumer doesn't know or considers polarity of his 2 doorbell wires, which component can a 'simple' device include to self-correct or auto-regulate (sort) for the +- or -+ connection and stepdown ...
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NPN TRANSISTOR POLARITY

i am a mechanical engineer i have a question on a transistor. what happens if i apply a +ve terminal to base and negative terminal to emitter in a NPN transistor with no wires connected to the ...
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Question About Current Flow Direction [closed]

I've got a question that has been perplexing me for a while. (Correct me anytime) (Please do not give me any textbook definitions.) Starting with the name of the question itself, I believe current is ...

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