Electronics - Semiconductor Principles - Discussion

mention any pressue and magnetism semiconductor& its applications

Whatever may be the energy applied to the atom< the receives energy in the form of heat only. So even pressure is applied the atoms sense only the heat generated by that pressure. Then how the answer will be all the above? can anyone clarify this please?!?

How can pressure and magnetism be sensed?

How magnetism sensed?

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.

What is the final conclusion?

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

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

How can sense magnetim?

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.