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- Third Assistant Engineer (Steam-Motor-Gas Turbine Plants (Unlimited)) »
- Q536 - Electrical, Electronic, & Control Engineering
596. If a digital multimeter is set up as shown in figures «A» and «B» of the illustration, what is the status of the silicon diode if the display reads 5 megohms when configured as in figure «A» and the display reads infinite (OL) megohms when configured as in figure «B»
The diode functions properly because it exhibits a measurable resistance in one direction and blocks current in the opposite direction, consistent with the behavior of a normal silicon diode. A shorted diode would show low resistance in both directions, an open diode would show infinite resistance in both directions, and an intermittently open diode would display unstable readings.
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