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Worksheets12th electrostatics
Total questions: 15
Worksheet time: 29mins
The figure shows a neutral glass rod and a positively charged metal sphere.
Which of the following best describes the movement of charges as this glass rod touches the sphere?
Positive charges move from the sphere to the glass rod.
Negative charges move from the sphere to the glass rod.
Negative charges move from the glass rod to the sphere.
Positive charges move from the glass rod to the sphere.
What is the electric force between a positive 2.5 C charge and a negative 1.3 C charge when they are separated by a distance of 10 m?
-107,880,000
-292,175,000 N
292,175,000 N
107,880,000
As two oppositely charged particles approach each other, what happens to the electrical force between them?
The attractive force increases
The magnitude of the electric force decreases
The repulsive force increases
The magnitude of their charges increases
What is the electric force between a 0.5 C charge and a 1.8 C charge when they are separated by a distance of 20 m?
404,550,000 N
20,227,500 N
.045 N
129,456 N
Which two particles are attracted to each other?
Two neutrons
A proton and an electron
Two protons
An electron and a neutron
FE= (k*q1*q2) / r2
Electrical forces are stronger than gravitational forces.
True
False
The study of electricity at rest is
electrostatics
electrodynamics
electroresting
Which of the following materials conducts electricity the best?
plastic
rubber
metal
glass
A repulsive force exists between which two particles?
Two neutrons
An electron and a neutron
An electron and a proton
Two protons
