Technician A says that a low or zero reading on an ohmmeter indicates continuity. Technician B says that an ohmmeter set on the highest scale and reading infinity means no continuity. Which technician is correct?
a. Technician A only
b. Technician B only
c. Both Technician A and B
d. Neither Technician A nor B
c. Both Technician A and B
Both technicians are correct. Technician A is correct because if the ohmmeter display shows zero or low ohms, this means that there is little if any resistance between the meter leads. The component being tested has continuity and current will flow if connected to an electrical power source. Technician B is correct because an infinity reading, such as "OL" on the display, means that there is such a high resistance between the meter leads that the meter is unable to measure on the highest setting. In other words, the component being measured lacks continuity and no current will flow if connected to an electrical power source. Answer d is not correct because both technicians are correct.
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