What is tuning of radio or T.V.circuits? Why it is essential?

What is the natural frequency of L C circuit? What is the reactance of this circuit at this frequency?

What is the value of impedance of LR circuit ?

What are acceptor circuits?

What are rejector circuits?

How BS emission standards changed over time? Why is it essential?

Explain the process of sewage water treatment before it can be discharged into natural bodies. Why this treatment is essential?

What is a digital circuit?

Explain the process of charging of tRNA. Why is it essential in translation?

Why a unique name for a particular individual is essential in a multilingual country like India?

What is resonant circuit?