The radii of two spheres are 2 cm and 4 cm, and they carry 1000 C and 2000 C charges, respectively. What will be the ratio of their surface charge density? a) 4:1
b) 1:2
c)1:4
d)2:1

the answer of the given is 2:1

if you want explanation tell me

answer: option c. i.e. electric current flowing “downhill” from the negative electrode to the positive electrode in a battery

explanation:

the water analogy to the circuits define the pipes (water flows) to the electric current. now, we know that the electric current flows from the positive terminal to the circuit (as shown in the diagram attached).

hence, option c is the correct answer.

multiple allele inheritance is traits controlled by more than 2 alleles (ex: pigeons having 3 alleles of one gene govern their feather color).