Question

What type of device has the value of resistance?

Answer 1

1. The electrical resistance of a circuit is the ratio between the voltage applied to the current flowing through it.
2. The resistance can be measured by:
   $\mathrm{Resistance}=\frac{\mathrm{Potential}\mathrm{difference}}{\mathrm{current}}$
3. The device which is used to measure resistance is an ohmmeter or multimeter.
4. Ohmmeters are of two types - micro ohmmeter and mega ohmmeter.
5. A micro ohmmeter can measure low resistance.
6. A mega ohmmeter measures high resistance.
7. A multimeter is an instrument that can measure not only resistance but also current, voltage, and other parameters also.