Which one among the following is the chemical formula of gypsum which is an ingredient of cement?
The pure form of carbon is
Sodium stearate is a salt and is used
The principle of cleaning by soap is
Imagine a current carrying wire with the direction of current downward or into the page. The direction of magnetic field lines is
The motion of an electron in presence of a magnetic field is depicted in the figure.
Force acting on the electron will be directed