Electrostatics
__________is a negatively charge particle.
Electron
Three point charges are located along the x-axis. Point charge q1=-2.5C is at x=0, point charge q2= 3.0C is at x=3.0m, and point charge q3=4C at x=6.0m.
What is the direction of the electrostatic force between point charge B and C?
a. The force is attractive c. The force is destructive
b. The force is repulsive d. Cannot be determined
b. The force is repulsive
Identify what was describe in the description:
"An electric field lines that radiate outwards from the charge in all directions."
a. Isolated positive charge
b. Isolate negative charge
c. Two positive charges
d. Two negative charges
a. Isolated positive charge
The electric flux through a closed surface if the electric field is perpendicular to the surface is equal to _________.
Zero
Two parallel plates are separated by a distance of d=2m with a uniform electric field of 100 N/C. What is the electric potential difference between the plates?
200V
In which charging process does an object become charged without direct contact with a charged object?
Charging by Induction
Three point charges are located along the x-axis. Point charge q1=-2.5C is at x=0, point charge q2= 3.0C is at x=3.0m, and point charge q3=4C at x=6.0m.
What is the magnitude of the electrostatic force between point charge B and A and what is its magnitude?
a.The force is attractive, with a magnitude of 3x109 N
b. The force is repulsive, with a magnitude of 3.5 x 109 N
c. The force is attractive, with a magnitude of 7.5 x 109 N
d. The force is repulsive, with a magnitude of 8.2 x 109 N
c. The force is attractive, with a magnitude of 7.5 x 109 N
Identify what was describe in the description:
"They converge towards the charge from all directions"
a. Isolated positive charge
b. Isolate negative charge
c. Two positive charges
d. Two negative charges
b. Isolate negative charge
The formula for electric flux is ________.
Φ = EA or Φ = EAcosθ or Φ = EAcos90 °
__________is a capacitor’s ability to store charges.
Capacitance
A charging processes that involves the transfer of electrons due to the rubbing or contact between two materials is what we call____________.
Charging by Friction
Three point charges are located along the x-axis. Point charge q1=-2.5C is at x=0, point charge q2= 3.0C is at x=3.0m, and point charge q3=4C at x=6.0m.
What is the magnitude of the electrostatic force between point charge B and C and what is its direction?
a.The force is attractive, with a magnitude of 1.0 x1010 N
b. The force is repulsive, with a magnitude of 1.2 x 1010 N
c. The force is attractive, with a magnitude of 2.0 x 1010 N
d. The force is repulsive, with a magnitude of 3.2 x 1010 N
b. The force is repulsive, with a magnitude of 1.2 x 1010 N
Identify what was describe in the description:
"The electric field lines exhibit a pattern of inward radial lines originating from each charge. These lines diverge away from each other, with a neutral point located between them"
a. Isolated positive charge
b. Isolate negative charge
c. Two positive charges
d. Two negative charges
d. Two negative charges
The Gauss's Law is only applicable to___________.
a. Open surfaces only
b.. None of the above
c. Closed surfaces only
d. Both open and closed surfaces
c. Closed surfaces only
Which of the following is NOT a dielectric material?
a. Glass b. Iron c. none of the above
b. Iron
_________is a charging process that involves direct contact with a charged object.
Charging by conduction
________is a region in which an electric charge experiences a force.
Electric Field
According to Coulomb's Law, the force between two point charges is directly proportional to the product of their charges and inversely proportional the square of the distance between them. Is it True or False
True
In Gauss's Law, the electric flux through a closed surface is equal to the total charge enclosed by the surface divided by ε₀.
True or False?
True
A device that store charges is what we call________.
Capacitor
Three point charges are located along the x-axis. Point charge q1=-2.5C is at x=0, point charge q2= 3.0C is at x=3.0m, and point charge q3=4C at x=6.0m.
What is the direction of the electrostatic force between point charge B and A?
a. The force is attractive c. The force is destructive
b. The force is repulsive d. Cannot be determined
a. The force is attractive
According to Michael Faraday, electric lines of force always starts from______.
a. positive charges and end on neutral charges
b. neutral charges and end on negative charges
c. positive charges and end on negative charges
d. negative charges and end on positive charges
c. positive charges and end on negative charges
What is the fundamental unit of charge?
C (Coulombs)
At a neutral point electric field is equal to__________.
Zero
For instance, capacitors has the following values: C1= 5F, C2= 2F, and C3= 7F, find the total capacitance for each connection shown.
a. In series
b. In parallel
a. 1.186440678F or 1.19F or 1.2F
b. 14F