$A$ metal has a very large number of free electrons and a non-metal has a very small number of free electrons.

If you connect three resistors having values $2 \, \Omega$, $3 \, \Omega$, and $5 \, \Omega$ in parallel, will the value of total resistance be less than $2 \, \Omega$, greater than $5 \, \Omega$, or lie between $2 \, \Omega$ and $5 \, \Omega$? Explain.

What are the factors on which heat dissipated by a conductor depends?

If the diameter of a conducting wire is doubled,how many times does its resistance become?

Three incandescent bulbs of $100\, W$ each are connected in series in an electric circuit. In another circuit, another set of three bulbs of the same wattage are connected in parallel to the same source. Will the bulbs in the two circuits glow with the same brightness? Justify your answer.

What is the process of depositing a layer of gold on silver called?