WorksheetsCoulomb's Law and Charge High School Honors Physics
Total questions: 10
Worksheet time: 18mins
The law, governing the force between electric charges is known as
Ampere's law
Ohm's law
Coulomb's law
Faraday's law
The ratio of the forces between two small spheres with constant charge (a) in air (b) in a medium of dielectric constant K is
1 : K
K : 1
1 : K2
K 2: 1
A body can be negatively charged by
Giving excess of electrons to it
Removing some neutrons from it
Removing some electrons from it
Giving some protons to it
+2C and -6C two charges are repelling each other with a force of 12N . If each charge is given -2C of charge, then the value of the force will be
4 N (Attractive)
4 N (Repulsive)
8 N (Repulsive)
zero
When 1014 electrons are removed from a neutral metal sphere, the charge on the sphere becomes
16 μ C
- 16 μ C
32 μ C
- 32 μ C
Two point charges placed at a certain distance r in air exert a force F on each other. Then the distance r' at which these charges will exert the same force in a medium of dielectric constant k is given by
r
r/K
kr
rk
Two charges of equal magnitudes and at a distance r exert a force F on each other. If the charges are halved and distance between them is doubled, then the new force acting on each charge is
F / 8
F / 4
4F
F/16
Six charges, three positive and three negative of equal magnitude are to be placed at the vertices of a regular hexagon such that the electric force on a test charge at O is double the electric force when only one positive charge of same magnitude is placed at R. Which of the following arrangements of charges is possible for P, Q, R, S, T and U respectively
+ , - , +, - , - , +
+ , - , + , - , + , -
+ , + , - , + , - , -
-, + , + , - , + , -
The charge q is projected into a uniform electric field E, work done when it moves a distance Y is
qEy
qY/E
qE/Y
Y/qE
Tick the correct option.
Electrostatic force is a conservative in nature.
Two identical metallic spheres of exactly equal masses are taken. One is given a positive charge Q Coulombs and the other an equal negative charge. Their masses after charging are different.
The electric force between two charges changes, if we bring a third charge closer to them.
Electrostatic force is both attractive and repulsive.
