GENERAL KNOWLEDGE

GK

UNITS DEVICES DIMENSIONS AND MEASUREMENTS

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Which instrument is used to measure electrical resistance in ohms?
A
Ohmmeter
B
Ondometer
C
Pyrometer
D
Nephetometer
Explanation: 

Detailed explanation-1: -ohmmeter, instrument for measuring electrical resistance, which is expressed in ohms. In the simplest ohmmeters, the resistance to be measured may be connected to the instrument in parallel or in series .

Detailed explanation-2: -An Ohmmeter is: Used to measure resistance directly on meter. Used ONLY when unit is disconnected from its original circuit. Operated by use of an internal battery to make circuit comparisons.

Detailed explanation-3: -The Ohm () is a unit of electrical resistance equal to that of a conductor in which a current of one ampere is produced by a potential of one volt across its terminals. Ohm’s law, named after its discoverer the German physicist Georg Ohm, is one of the most important, basic laws of electricity.

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