with-reference-to-book-i-am-posting-some-basic-question-for-students-1-two-charged-coducting-sphere-of-radius-r-1-and-r-2-are-positvely-charged-separated-at-a-distance-d-from-each-other-force-o

Question Number 58614 by tanmay last updated on 26/Apr/19

w i t h r e f e r e n c e t o b o o k i a m p o s t i n g s o m e b a s i c

q u e s t i o n f o r s t u d e n t s .

1) t w o c h a r g e d c o d u c t i n g s p h e r e o f r a d i u s

r_{1} a n d r_{2} a r e p o s i t v e l y c h a r g e d s e p a r a t e d

a t a d i s t a n c e d f r o m e a c h o t h e r .

f o r c e o f i n t e r a c t i o n i s F

w h i c h i s c o r r e c t a n s w e r

a) F = \frac{1}{4 π ϵ} \frac{q_{1} q_{2}}{d^{2}}

b) F > \frac{1}{4 π ϵ} \frac{q_{1} q_{2}}{d^{2}}

c) F < \frac{1}{4 π ϵ} \frac{q_{1} q_{2}}{d^{2}}

d) n o n e o f t h e s e

2) s a m e q u e s t i o n a s 1 b u t o n e i s + v e q_{1} a n d

a n o t h e r i s - v e q_{2} t h e n w h i c h o p t i o n i s c o r r e c t

a) F = F_{c o l u m b}

b) F > F_{c o l u m b}

c) F < F_{c o l u m b}

d) n o n e o f t h e s e

p l s g i v e a n s w e r w i t h e x p l a n a t i i n . .

Answered by Kunal12588 last updated on 27/Apr/19

i t h i n k

a n s 1 - (b)

a n s 2 - (b)

Commented by tanmay last updated on 27/Apr/19

Answered by sridhar nayak last updated on 09/Jun/19

f i r s t q u e s t i o n a n s w e r i s 1 . B e s a u s e f o r c e b e t w e e n t w o c h a r g e d s p h e r e i s e q u a l t o t h a t f o r m u l a .