solve6 3. If a charge is moved against the coulomb force of an electric fielda) work is done by electric fieldc) the strength of field is decreasedb) energy is used from some outside sourced) energy of system is decreasedIn a hydrogen atom the electron and a proton are bound together at a separation of about 0.53A°. Thepotential energy of electron proton system isa) – 54.4evb) -27.2 evc) -13.6 evd) zero5.Two identical charges are placed at the two corners of an equilateral triangle. The P.E of system is 'U'workdone in bringing an identical charge from infinity to the third vertex isa) Ub) 2Uc) 3Ud) 4UA uniform electric field 10 N/C exists in vertically downward direction, the increase in the electricpotential as one goes through a height of 50 cm is6.a) 20Jb)Jc) 5Jd)J20Statement A : Potential is a scalar quantity.Statement B: Gradient of potential is a vector quantity7.b) Both A and B are falsed) A is false and B is truea) Both A and B are truec) A is true and B is falseAssertion (A) : Electric dipole consists of equal and disimilar charges separated by some distanceReason (R) : Electric dipole moment is a vector quantitya) Both A and R are correct and R is correct explanation of Ab) Both A and R are correct but R is not correct explanation of Ac) A is correct, R is wrong8.d) A is wrong, R is correct9.Two charged particles having equal charges of 2 x 10° C each are brought from infinity to within aseparation of 10cm. The increase in P.E. is[ ]a) 18Jb) 27Jc) 36Jd) 45J1:1

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a uniform electric field exists vertically downward direction with a magnitude of 10 N/C…

6. A uniform electric field 10 N/C exists in vertically downward direction, the increase in the electric potential as one goes through a height of 50 cm is 1 b) a) 20J c) 5J d) J 20