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- 1. Multiple Choice
In the diagram below, P is a point near a negatively charged sphere. Which direction best represents the direction of the electric field at point P?RightLeftUpDown - 2. Multiple ChoiceA point charge Q is far from all other charges. At a distance of 2 m from Q, the electric field is 20 N/C. What is the force a charge of 5 Coulombs feels?4 N100 N40 N10 N
- 3. Multiple ChoiceWhich of the following statements is false about electric field lineselectric field lines cannot crosselectric field lines point away from positive chargeelectric field lines are always straight lineselectric field lines show how a proton would move in an electric field
- 4. Multiple ChoiceAt which point is the electric field the strongestABCD
- 5. Multiple Choice
An electrostatic force of 2 X 10-2 Newtons is exerted on a charge of 4 micro coulomb at point P in an electric field. The magnitude of the electric field intensity at P is
5 X 102 N/C
5 N/C
50 N/C
5000 N/C
- 6. Multiple ChoiceIt is observed that Balloon A is charged negatively. Balloon B exerts a repulsive effect upon balloon A. Would the electric field vector created by balloon B be directed towards B or away from B and why?towards because electric field lines point away from negative chargestowards because electric field lines point away from positive chargesaway because electric field lines point away from negative chargesaway because electric field lines point toward positive charges
- 7. Multiple ChoiceWhat is the magnitude of the electric field intensity at a point where a proton experiences an electrostatic force of magnitude 2.30 x 10-25 newton?1.44 x 10-6 N/C3.68 x 106 N/C1.44 x 1044 N/C3.68 x 10-44 N/C
- 8. Multiple ChoiceAs a proton moves in the direction the electric field lines...it is moving from low potential to high potential and gaining electric potential energy.it is moving from low potential to high potential and losing electric potential energy.it is moving from high potential to low potential and gaining electric potential energy.it is moving from high potential to low potential and losing electric potential energy.
- 9. Multiple Choice
A proton is accelerated from rest through a potential difference V0 and gains a speed v0. If it were accelerated instead through a potential difference of 2V0, what speed would it gain?
- 10. Multiple ChoiceThe electric potential at a distance of 4 m from a certain point charge is 200 V relative to infinity. What is the potential (relative to infinity) at a distance of 2 m from the same charge?600 V50 V200 V400 V
- 11. Multiple ChoiceTwo protons are released from rest, with only the electrostatic force acting. Which of the following statements is NOT true about them as they move apart?Their electric potential energy keeps decreasing.Their electric potential energy keeps increasing.Their acceleration keeps decreasing.Their kinetic energy keeps increasing.
- 12. Multiple ChoiceWhich is a characteristic of most electrical conductors?They can be cut easily.Positive charges move easily through them.Negative charges move easily through them.They are soft and flexible.
- 13. Multiple Choice
a.
b.
c.
d.
e.
- 14. Multiple Choice
A solid non-conducting sphere has a radius R and a charge of +Q uniformly distributed throughout its volume. Which graph below describes the electric field as a function of distance r from the center of the sphere?
- 15. Multiple Choice
A conducting sphere has a charge +Q and a radius R. Which graph below describes the electric field as a function of distance r from the center of the sphere?
- 16. Multiple Choice
A spherical conductor is given a positive charge. Under electrostatic conditions, which of the following is TRUE of the electric field just beneath the surface of the sphere?
The electric field is directed away from the center of the sphere.
The electric field in infinitely large.
The electric field is zero.
The electric field depends on the radius of the sphere.
The electric field is directed tangential to the surface of the sphere.
- 17. Multiple Choice
A
B
C
D
E
- 18. Multiple Choice
A
B
C
D
E
- 19. Multiple Choice
Two statements
Statement I: A small metallic sphere is placed at the center of a large charged spherical shell and two are the connected by a wire. The charge will not flow from outer sphere to inner sphere
Statement II: A charged conductor is placed inside the hollow conductor and two are connected by the wire. The whole charge will flow on the outer surface of the outer conductor
Both the statement I and II are false
Statement I is correct only
Statement II is correct only
Both the statement is true
- 20. Multiple Choice
A charge of magnitude q is divided into two parts such that force between resulting two charges is maximum when separated through some distance r. The division of charges would be
3q/8 , 5q/8
2 q/4 , 2q/4
q/2 , q/2
3q/6 , 3q/6
- Answer choicesTagsAnswer choicesTags