Answer:
option B
Explanation:
we know,
Force between two charge is calculated by

r is the distance between the two charges
k is Coulomb constant.
give two small object with charge Q
now, Force
......(1)
now,
New force if another charge is equal to 4 Q


now from equation 1

Hence, the correct answer is option B
Answer:
resistances is inversely proportional to the area of cross section of the conductor
Answer:
Biomass energy, Wind Energy, Hydro-power, Solar energy are some of the most utilized naturally occuring renewable resources.
The answer is : Open circuit