(A) 2.5 eV
(B) 10 eV
(C) 8 eV
(D) 12 eV
Two equal and opposite point charges separated by a distance 2m. The electric potential at the midway between them is?
(A) Zero
(B) Low
(C) Constant
(D) High
If potential difference across two plates of a parallel plates capacitor is doubled then the energy stored in it will be?
(A) 2 Times
(B) 3 Times
(C) 4 Times
(D) 8 Times
Total flux through a closed surface depends upon?
(A) Charge enclosed only
(B) Charge and Medium
(C) Shape of surface
(D) Medium only
For computation of electric flux the surface area should be?
(A) Flat
(B) Spherical
(C) Curved
(D) Parallel
Among following iron ores highest percentage of iron content is found in?
(A) Limonite
(B) Magnetite
(C) Hematite
(D) None of the above
Heat resistant variety of glass is?
(A) Flint glass
(B) Hard glass
(C) Pyrex glass
(D) None of the above
Which among the following is radioactive?
(A) Strontium
(B) Thorium
(C) Platinum
(D) Cesium