Electronics - Semiconductor Principles - Discussion

Hall effects sensor is made of semiconductor.

Yes, that's true. Well said @Kumkum Barik.

Option D. All of the above.

As we know that semiconductor is negative temperature co-efficient and it's resistance increases when temp decreases and vice versa. That means it can sense Temp. For pressure sensing purpose, one device is there called as Strain Gauge Transducer which is based on metal or Silicon semiconductor strain gauges to sense pressure. It means semiconductor can also sense pressure. For magnetism, there is one magnetic sensor known as Hall Effect sensor which is nothing but a thin piece of rectangular p-type semiconductor material such as Gallium Arsenide (GaAs) and Indium Arsenide (InAs).

This means semiconductor can also be able to sense magnetism.

In conclusion, we can say that semiconductor can sense temp, pressure and magnetism.

How can sense magnetim?

Yes, I want to know how a semiconductor sense magnetism?

Semiconductor can sense temperature & pressure but how can be magnetism?

What is the final conclusion?

I don't know what's the actual answer is, But I think that almost all sensors are made up of semiconductors. So. Why not it sense the quantities like magnetism, temperature, pressure.

How magnetism sensed?

How can pressure and magnetism be sensed?