Electrostatic Potential and Capacitance — Physics STD 12 Science — Question

Mark the correct statements:

1. Equations of special relativity are not applicable for small speeds.
2. Equations of special relativity are applicable for all speeds.
3. Nonrelativistic equations give exact result for small speeds.
4. Nonrelativistic equations never give exact result.

Two proton beams going in the same direction repel each other whereas two wires carrying currents in the same direction attract each other. Explain.

Do two distinct poles actually exist at two nearby points in a magnetic dipole?

Which nuclear reaction is responsible for producing energy from the Sun?

Suppose a charge +Q₁ is given to the positive plate and a charge -Q₂ to the negative plate of a capacitor. What is the ''charge on the capacitor''?

Write the dispersion power of a prism.

Why does a diamond shine more than a glass piece cut to the same shape?

If the self-inductance of an iron core inductor increases from 0·01mH to 10mH on introducing the iron core into it, what is the relative permeability of the core material used?