You test a diode with an ohmmeter. The two readings indicate a very low value of resistance. The diode is probably open shorted normal conducting heavily Question 1
You test a diode with an ohmmeter. The two readings indicate a very low value of resistance. The diode is probably open shorted normal conducting heavily Question 1
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Transcribed Image Text:**Diode Testing with an Ohmmeter**
When you test a diode with an ohmmeter, the behavior observed in the readings can tell you a lot about the state of the diode.
Given the scenario:
- **Prompt:** You test a diode with an ohmmeter. The two readings indicate a very low value of resistance. The diode is probably:
- ☐ open
- ☐ shorted
- ☐ normal
- ☐ conducting heavily
**Explanation:**
Here, the ohmmeter readings providing a very low resistance suggest that the diode is most likely **shorted**.
- **Open Diode:** If the diode is open, it would show a very high resistance, as there is no current flow.
- **Shorted Diode:** A shorted diode indicates that the diode has failed and is conducting as if it were simply a piece of wire, thus showing low resistance.
- **Normal Diode:** Under normal circumstances, a diode shows low resistance in one direction (forward bias) and high resistance in the other (reverse bias).
- **Conducting Heavily:** This statement is vague but could typically be associated with low resistance in a properly functioning diode under forward bias. However, since the prompt specifies two low readings, this option is less likely.
Select the appropriate answer based on your understanding of diode behavior and the provided ohmmeter readings.
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