How is the linear charge density of a uniformly charged ring related to total amount of charge the linear charge density is the ratio of the total charge to the diameter. the linear charge density is the ratio of the diameter to the total charge. the linear charge density is the ratio of the total charge to the circumference. the linear charge density is the product of the total charge and the diameter.

The linear charge density is the ratio of the total charge to the circumference.

Explanation:

As we know that linear charge density is defined at the charge per unit length in a given system of charge

here we have to find the linear charge density of the ring

so we can say it is given as

now we know that length of the ring is total length of its circumference

so we can say

so here correct answer will be

The linear charge density is the ratio of the total charge to the circumference.

answer: at 24 february, 2014 the population gets twice of its initial population.

explanation:

since we have given that

the population for alpha city, t years after january 1, 2004 is given as

first we find out the initial population, i.e. t=0,

so, our quadratic equation becomes,

according to question, we have said that if the population has twice its initial population, then it becomes

so, time taken to reach this above mentioned population is given by

now, we know that time can't be negative so, we take t=9.149 years.

hence, at 24 february, 2014 the population gets twice of its initial population.

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