Page 4 - English Class X_cbse new (FINAL).cdr

Q3 Plot a graph showing the variation of coulomb force (F) versus  1 ,
 r 2 

where r is the distance between the two charges of each pair of charges:

(1 µC, 2 µC) and (2µC, - 3µC), Interpret the graphs obtained.

[2] OD Set-1 [2011]

Q4 Write any two characteristic properties of nuclear force.

[1] OD Set-1 [2011, 2008]

Q5 Calculate the work done to dissociate the system of three charges placed
on the vertices of a triangle as shown here q = –1.6×10–10 C.

10 cm q 10 cm
10 cm +2q
-4 q
[5] Delhi Set-1 [2008]

Physics Booklet_Unit 1_.indd 2 2

8/17/2018 8:35:09 AM