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srikanth1318
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Electronics

07/05/2012 10:15 AM

can we find resistance without using colorcode, multimeter,ohmmeter ????
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lyn
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#1

Re: electronics

07/05/2012 10:21 AM

Yes.
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Doorman
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#2

Re: Electronics

07/05/2012 1:53 PM

Can I use a baseball bat?

A fellow once used a baseball bat to measure my resistance...

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jack of all trades
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#3

Re: Electronics

07/05/2012 3:10 PM

Some resistors are marked with the resistance in ohms.

Alternative methods can include the use of an oscilloscope (if the resistor is part of a powered circuit, or loudly yelling "RESISTANCE IS FUTILE" if asked what the resistance is by the boss.

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NotUrOrdinaryJoe
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#4

Re: Electronics

07/06/2012 11:59 AM

If you are very lucky, you might be able to pick it from a schematic.

You might approximate it using temperature if you know how much power it is dissipating. For the power you will need to know voltage and current. But that requires a multimeter.

There are many types of indicators on the market. What are you willing to use?

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Doorman
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#5
In reply to #4

Re: Electronics

07/06/2012 12:18 PM

I suspect his exam paper was looking for Wheatstone Bridge.

I offer this now because if it is a homework/test question it is too late.

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CraziestOzzy
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#6

Re: Electronics

07/07/2012 10:03 PM

...what more can I say...

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