What is the SI unit of
charge?
Coulomb.
It is due to raise the name of the scientist.
What is the value of the charge of an electron?
-1.6×10-19
C
Write the formula of
Coulomb law.
1/4πԐ0
q1 q2/r2
Write the value of the
constant k in Coulomb law.
9×109
Nm2C2
What is the SI unit of the electric field?
NC-1 (Newton per
Coulomb)
"The electric field
lines never intersect". This statement is correct or wrong. Explained.
Yes, electric field lines are
never intersecting. If two lines cross at a point, then there will be two different
electric field vectors at the same point.
This is physically impossible.
Calculate the force
experienced by the two charges for the following cases:
q1 = + 2 μ C q2 = -3 µC distance = 1m
1/4πԐ0
q1 q2/r2
9×109×
(2×10-6) ×
(-3×10-6)/12
=
- 54×10-3
N
If the net charge is
zero in the object, what it is said to be?__________
It is said to be electrically neutral.
What is the value of
permittivity of free space?
8.85×10-12
N-1 m-2
What is the value of
gravitational constant?
G = 6.626×10-11 N m2 kg-2
Tags
science