The drift speed is defined as v_(d)=(Delta l//Delta t) where (Delta l)is the distance drifted in a long time (Delta t). Why don't we define the drift speed as the limit of (Delta l//Delta t) as (Delta t (rarr)0)?

A warning of high voltage is usually displayed instead of high current near an electrical equipment or transmission lines but it is actually the current that surges through a body in contact with the equipement . Why don't we rather use the warnings of high current ?

Now that they are at the pool, why don't they continue the fight ?

Match thetags with the statements We love it, don’t we?

If electromagnetic radiation is made up of quanta, why don't we detect the discrete packets of energy, for example, when we listen to a radio?

The two ends of a rod of length L and a uniform cross-sectional area A are kept at two temperature T_(1) and T_(2) (T_(1) gt T_(2)) . The rate of heat transfer. (dQ)/(dt) , through the rod in a steady state is given by

The molar specific heat of a gas is defined as C=(Dq)/(ndT) Where dQ =heat absorbed n = mole number dT = change in temperature The equation of the above process in the variables T ,V is