WorksheetsDirect impact of two smooth sphere
Total questions: 10
Worksheet time: 5mins
When an electric field is applied to the metal, the free electrons move in (a) direction
Choose all the options which are applications of static electricity.
Photocopying
Maglev Trains
Electric Generators
Pollution and smoke control from factories
Painting cars to spread paint evenly
There is no loss of energy and resultant velocity is zero, this indicates ______ of free electrons
inelastic collision
elastic collision
Direct compact
Oblique impact
The following type of charging involves transfer of charge due to direct contact between two surfaces.
Charging by Induction
Charging by Friction
Charging by Conduction
Charging by Convection
In DOS, volume of the sphere of radius n is equal to the number of energy states
volume of cube
number of energy states
number of energy levels
none in the list
A hollow metal sphere of radius 5 cm is charged so that the potential on its surface is 10 V. The potential at the centre of the sphere is?
0 V
10 V
Same as at point 5 cm away from the surface
Same as at point 25 cm away from the surface
A uniformly charged (thin) non-conducting shell (hollow sphere) of radius R with the total positive charge Q is placed at a distance d away from an infinite non-conducting sheet carrying a uniformly distributed positive charge with a density σ. The distance d is measured from shell’s center (point O). What is the magnitude of the total electric field at the center of the shell?
2ε0σ
4πε0R2Q+2ε0σ
4πε0R2Q+ε0σ
ε0σ
the basic structural unit or building block of the crystal structure and defines the crystal structure by virtue of its geometry and the atom positions within
Lattice
Amorphous
Unit Cells
FCC
Cube edge length a or x and the atomic radius R in FCC is related by
a = 2R√𝟐
a = 34R
