Identify the correct statements :
A. Electrostatic field lines form closed loops.
B. The electric field lines point radially outward when charge is greater than zero.
C. The Gauss-Law is valid only for inverse-square force.
D. The workdone in moving a charged particle in a static electric field around a closed path is zero.
E. The motion of a particle under Coulomb's force must take place in a plane.
Choose the correct answer from the options given below :
- A
A, B, D, E Only
- B
A, B, C, D Only
- C
B, C, D, E Only
- D
A, C, E Only
A. Electrostatic field lines start and end on charges; they do not form closed loops (that's a property of magnetic field lines). FALSE.
B. Field of a positive point charge points radially outward. TRUE.
C. Gauss's law in its standard form relies on the dependence; for any other inverse-power force it would not yield a charge-independent flux. TRUE.
D. Static electric field is conservative; work over a closed loop is zero. TRUE.
E. Coulomb force is central; angular momentum is conserved, so motion lies in the plane fixed by the initial position and velocity. TRUE.
B, C, D, E only.
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