1. Electric potential is given by V=6x-8xy-8y+6yz - 4z Then magnitude of electric force acting on...

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1. Electric potential is given by V=6x-8xy-8y+6yz - 4z Then magnitude of electric force acting on 2C point charge placed on origin will be :- (1) 2N (2) 6N (3) 8N (3) 8N (4) 20 N 2. Figure shows three points A, B and C in a region of uniform electric field E. The line AB is perpendicular and BC is parallel to the field lines. Then, which of the following holds good? A E B C (1) VA = VB =Vc (3) VA=VB 3. The variation of potential with distance x from a fixed point is shown in figure. The electric field at x=13 m is V(volt) 60 64 (not to scale) 45 30 222 20 10 0 2 4 6 (1) 7.5 volt/meter (3) 5 volt/meter 8 10 12 14 16 (2) -7.5 volt/meter (4) -5 volt/meter x(m) 4. A charged particle of mass m and charge q is released from rest in an electric field of constant magnitude E. The KE of the particle after time t is :- Eqm 2E2+2 (1) (2) 2t2 mq 2 2 Eq Eqm (3) (4) 2m 2t 5. Two charge particles are released from the rest then find kinetic energy of charge Q when separation between them is 2r. 35 KQ (1) (3) -- 6 KQ 5 2m r 4Q 3m 2 KQ (2) (4) None of these 1. Electric potential is given by V=6x-8xy-8y+6yz - 4z Then magnitude of electric force acting on 2C point charge placed on origin will be :- (1) 2N (2) 6N (3) 8N (3) 8N (4) 20 N 2. Figure shows three points A, B and C in a region of uniform electric field E. The line AB is perpendicular and BC is parallel to the field lines. Then, which of the following holds good? A E B C (1) VA = VB =Vc (3) VA=VB 3. The variation of potential with distance x from a fixed point is shown in figure. The electric field at x=13 m is V(volt) 60 64 (not to scale) 45 30 222 20 10 0 2 4 6 (1) 7.5 volt/meter (3) 5 volt/meter 8 10 12 14 16 (2) -7.5 volt/meter (4) -5 volt/meter x(m) 4. A charged particle of mass m and charge q is released from rest in an electric field of constant magnitude E. The KE of the particle after time t is :- Eqm 2E2+2 (1) (2) 2t2 mq 2 2 Eq Eqm (3) (4) 2m 2t 5. Two charge particles are released from the rest then find kinetic energy of charge Q when separation between them is 2r. 35 KQ (1) (3) -- 6 KQ 5 2m r 4Q 3m 2 KQ (2) (4) None of these