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Charge is the basic property associated with matter due to which it produces and experiences electrical and magnetic effects .Coulomb’s Law is an important concept in static electricity. According to it , the force of attraction or repulsion between two point charges at rest is directly proportional to the product of magnitude of the charges and inversely proportional to the square of the distance between them. Also this force acts on the line joining the two charges. Hence, option D is correct.
If 24 persons can finish 50% of work in 12 days in how many days 48 person can finish the complete work?
A work can be completed by ‘A’ and ‘B’, alone in 18 days and 12 days, respectively. Find the number of days taken by ‘C’ to complete the sam...
‘A’ can do a piece of work in 20 days. ‘B’ can do 80% of the same work in 30 days. If they work together for the entire time and get paid Rs.161...
'A' can complete a project in 15 days but worked only the first 4 days. 'B', who is 80% as efficient as 'A', takes over. How long does 'B' need to finis...
A, B, and C can finish work in 5 days, 10 days, and 15 days, respectively, working alone. A and B work on the first day, A and C work on the second day,...
A can finish a job in 20 days while B can finish same job in 30 days. A and B both worked for 5 days and C joins them. In next 3.5 days, all three have ...
'P' and 'Q' can finish a piece of work in 45 days and 90 days, respectively. 'P' starts working alone, and 'Q' joins after 'r' da...
Vijay can do a piece of work in 10 days and Sanjay can do the same work in 15 days. If Vijay works for 4 days and got Rs. 1680, and the remaining work w...
P’s 3 days work is equal to Q’s 5 days work. If P and Q together can complete the work in 30 days then how much time Q will take to complete 75% of ...
A and B together, B and C together and A and C together can complete a piece of work in 18 days, 15 days and 10 days respectively. Find the ratio...
