Question

A Hall probe calibrated to read 1.00 μV when placed in a 2.00-T field is placed in a 0.150-T field. What is its output voltage?

a) 0.01125 μV
b) 0.0150 μV
c) 0.0750 μV
d) 0.150 μV

Answer 1

The output voltage of the Hall probe when placed in a 0.150-T field is 0.0750 µV.

Step-by-step explanation:

To find the output voltage of the Hall probe when placed in a 0.150-T field, we can use the equation:

Vout = Vcalibrated × Bout / Bcalibrated

where Vout is the output voltage, Vcalibrated is the voltage when placed in a calibrated field, Bout is the field the probe is placed in, and Bcalibrated is the calibrated field. Given that Vcalibrated = 1.00 µV, Bcalibrated = 2.00 T, and Bout = 0.150 T, we can substitute these values into the equation:

Vout = (1.00 µV) × (0.150 T) / (2.00 T) = 0.0750 µV

Therefore, the output voltage of the Hall probe when placed in a 0.150-T field is 0.0750 µV (option c).