Write down the equation for displacement current

Write down the equation for calculating momentum.

It was James Clark Maxwell who modified Amperes Circuital Theorem by introducing the concept of displacement current. What do you mean by displacement current ?

Write down the unit of impulse.

Write down the equation for the reaction between CuSO_4 ,and ironnail? What type of reaction is this?

Write down the general equations for the reaction in anode and cathode.

Consider the curve y=x^2-2x+7 Write down the equation of the tangent at x=2 .