Negatively charged
Positively charged
Neutral
None of these
Step 1: An n-type semiconductor is created by doping a pure semiconductor with elements having more electrons.
Step 2: Despite having free electrons, the overall charge of the semiconductor remains neutral because the number of positive protons in the nuclei balances the charge.
Calculate the following for the given circuit:
Compare features of p-type and n-type semiconductors. Draw circuit diagram of half-wave rectifier of p-n junction diode and explain it.
By drawing a ray diagram, explain the formation of image in a compound microscope. Establish the formula for magnifying power for it.
What are electromagnetic waves? Draw their propagation diagram. Show the electric field amplitude and magnetic field amplitude in the propagation diagram.