Question (1 point): When a metal ball is given a positive charge, which of the f
ID: 1575425 • Letter: Q
Question
Question (1 point): When a metal ball is given a positive charge, which of the following is actually taking place? a) Protons are transferred to the ball from another object. b) Electrons are transferred to the ball from another object. c Electrons are transferred from the ball to another object. Electrons are transferred from the ball to another object, and protons are also transferred to the ball from another object. It depends on whether the object delivering the charge to the ball is a conductor or an insulator. e) Question (1 point): If more electric field lines enter a Gaussian surface than leave it, what can you conclude about the net charge enclosed by that surface? it is positive it is negative it is zero there is not enough information to answer this question c) d) Question (1 point): In a certain region of space, the electric field is zero. From this fact, what can you conclude about the electric potential in that region? it has tho same value throughour the res is zero. b It has the same value throughout the region. c) It is positive. d) It is negative. e) None of the above Question (1 point): A negative charge is released in an external electric field and moves freely along an electric feld line. The charge moves to a position of lower electric potential and lower potential energy lower electric potential and higher potential energy c)) higher electric potential and lower potential energy ) higher electric potential and higher potential energyExplanation / Answer
1)(c)Electrons are transferred from the ball to another object.
The negative charge has been removed from the ball and hence its now positively charged.
2)(b)It is negative
Because electric field lines originates on a positive charge and termnates on negative.
3)(b)It has a same value troughout the region
Since,
E = gradient V ; if E = 0
V = constant
4)(c)Higher electric potential and lower potential energy
As the negative charge will tend to go towards the positive charge and hence V will have more value.