Electric Charges and Fields — Physics STD 12 Science — Question

In a transistor, both emitter and collector regions are of the same nature of doping. Can these regions be interchanged?

If it were possible for a gas in a container to reach the temperature 0K, its pressure would be zero. Would the molecules not collide with the walls? Would they not transfer momentum to the walls?

Answer the following questions, which help you understand the difference between Thomson’s model and Rutherford’s model better.
Is the probability of backward scattering (i.e., scattering of α-particles at angles greater than 90°) predicted by Thomson’s model much less, about the same, or much greater than that predicted by Rutherford’s model?

When magnetic flux passing through any coil changes, is (i) an induced electromotive force and (ii) current always generated?

What is the difference between a conductor and a non-conductor?

What is the relation between drift velocity and relaxation time of free electrons in metals?

What is the value of average binding energy per nucleon?

Write names of those radiations of electromagnetic radiations which are :(i) used in satellite communication (ii) used to study crystal structure (iii) produced as a result of decay of radioactive nucleus (iv) wavelength in between 350 nm and 770 nm (v) absorbed by the ozone layer (vi) produce extensive heating effect.