Resin and turpentine are obtained from

$A$ graph of magnetic flux $\phi$ versus current $(I)$ is shown for four inductors $A, B, C, D$. The inductor with the smallest value of self-inductance is:

The energy that should be added to an electron,to reduce its de-Broglie wavelength from $10^{-10} \ m$ to $0.5 \times 10^{-10} \ m$,will be

If $\frac{1-x+6x^2}{x-x^3} = \frac{A}{x} + \frac{B}{1-x} + \frac{C}{1+x}$,then $A$ is equal to

What are the oxidation numbers of nitrogen in $NH_4NO_3$?

$A$ potential difference is applied across the ends of a metallic wire. If the potential difference is doubled,then the drift velocity