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A distributor ignition (DI) system has a Hall-Effect type pickup trigger. Technician A says that this type of pickup may be tested with an ohmmeter. Technician B says that this type of pickup produces an analog voltage signal. Who is right?
Select one:
a. Technician A only
b. Technician B only
c. Both technicians A and B
d. Neither technician A nor B

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Answer:

Option d - Neither technician A nor B

Explanation:

A picoscope isused to test for the Hall-Effect type pick up trigger.

Devices which are activated by an external magnetic field are called Hall Effect Sensors . From a Hall effect sensor , the output signal is a function of magnetic field density around the device.

Hence, when the magnetic flux density around the sensor exceeds a certain pre-set threshold, the sensor detects it and generates an output voltage called the Hall Voltage, VH.

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