An ohmmeter is used to check for which of the following conditions?
A. Continuity
B. Overheating
C. Overcurrent
D. Undercurrent
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Answer: A
Share your understanding of this question with the correct explanation.
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Explanation:
An ohmmeter is a device that measures electrical resistance, which is measured in ohms. It can be used to verify the continuity of an electrical circuit. Here’s a more detailed explanation of why this is the case:
A. Continuity - Correct.
In the context of electrical circuits, continuity refers to a complete, unbroken pathway for electricity to flow from one point to another. If there’s a break in the circuit (due to a blown fuse, broken wire, bad switch, etc.), there will be high resistance or even infinite resistance if the circuit is open.
The ohmmeter can detect this high resistance, indicating a lack of continuity. So, an ohmmeter is used to check for continuity by measuring resistance. When it reads close to zero ohms, the circuit has good continuity. A high ohm reading indicates poor continuity or a break in the circuit.