Answer / sindhejs

To find the resistance of the conducting device, apply the
ohms law to it. That is connect the voltage source to it,
apply the voltage and note down the current and volotage.
By using the formula V=I*R, calculate the Resistance R.

Answer / hitendra

By colour coading system we find out resistance but, it
must be standard.

Answer / manda

hi frinds,
it is applicable in resistive device and dc system,

In DC while we mention the voltage we are using -48V but in case of AC we mention only 230V not -230V, why we using -48V not 48V

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