MCQOPTIONS
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| 1. |
If the PPM concentration of a gas that is being detected by the MQ2 Gas Sensor increases what will happen to its Analog Output pin? |
| A. | Voltage Increases |
| B. | Voltage Decreases |
| C. | Voltage becomes 0 |
| D. | Voltage doesn t change |
| Answer» B. Voltage Decreases | |