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What is the optimum current that is required to operate the Ultrasonic Sensor?

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What is the optimum current that is required to operate the Ultrasonic Sensor?

(a) 20 mA

(b) 15 mA

(c) 200 A

(d) 1 A

I had been asked this question in homework.

My question is from Ultrasonic Sensor in section Interfacing of Sensors, Actuators, and Other Modules of Arduino

1 Answer

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Best answer
Right option is (b) 15 mA

The best explanation: The current rating on any Sensor is given so that users can know the what is the optimum current that needs to be fed to the active sensor such that the internal electronics is not destroyed by excess current.

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