Q:1 Q1):  6.25×10^18 electrons passes               through an area in one second then the       current produce is 

a: 0.5A

b:1A9

c: 1C/sec

d: both b&c


Q:2)  The electrostatic force between A source charge Q=5c and point charge q=2c is ........... & electrostatic force between source charge Q=2c and point charge q=5c is ....

.......

a:6N & 9N

b:8N & 8N 

c: 7N & 3N

d: none 


Q:3)  Colombic force follows 

a: Newton's first law

b: Newton's 2nd law

c: Newton's 3rd law

d: Law of universal gravitation

C)


Q:4)  equipotantial surfaces are always 

a: parallel to electric field lines

b: horizantal to electric field lines

c: perpendicular to electric field lines

d: have no relation with electric field lines.