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Flashcards on Electrostatics: Charge and Electric Fields
Click on the flashcard to see the answer
What is the fundamental property of matter that causes electric charge?
Electrons and protons
What is the SI unit of electric charge?
Coulomb
What is the charge of an electron?
-1.6 x 10^-19 C
What is the charge of a proton?
1.6 x 10^-19 C
What is the concept that states like charges repel and opposite charges attract?
Law of electric charges
What is an electric field?
A region around a charged particle or object where electric forces are exerted on other charged particles or objects
What is the equation to calculate the electric field strength at a point?
Electric field strength (E) = Force (F) / Charge (q)
What is the direction of the electric field created by a positive charge?
Radially outward
What is the direction of the electric field created by a negative charge?
Radially inward
What is the formula to calculate the force between two charged particles?
Electric force (F) = (k * q1 * q2) / r^2
What does the constant 'k' represent in the formula for electric force?
Coulomb's constant
What are the two types of electric charges?
Positive and negative
What is the net charge of an object that has gained electrons?
Negative
What is the net charge of an object that has lost electrons?
Positive
What is the process called when two objects transfer charges by touching each other?
Charging by conduction
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Test Your Knowledge
The SI unit of electric charge is
Newton
Joule
Coulomb
Watt
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What is the charge of a proton?
1.6 x 10^-19 C
-1.6 x 10^-19 C
0 C
1 C
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Which type of charge does an electron possess?
Negative
Positive
Neutral
Cannot be determined
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What is the formula to calculate the electric field strength?
Force (F) / Mass (m)
Force (F) / Charge (q)
Mass (m) * Acceleration (a)
Voltage (V) / Current (I)
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The electric field created by a positive charge points
Radially inward
Radially outward
Horizontally
Vertically
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The electric field created by a negative charge points
Radially inward
Radially outward
Horizontally
Vertically
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What is the formula to calculate the force between two charged particles?
k * q1 * q2
k / r
(k * q1 * q2) / r^2
k / (q1 * q2)
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Coulomb's constant 'k' represents
Speed of light
Electrostatic constant
Planck constant
Gravitational constant
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What are the two types of electric charges?
Positive and negative
Neutral and positive
Negative and neutral
Neutral and negative
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Charging by conduction occurs when
Two objects repel each other
Two objects transfer charges by touching each other
An object gains or loses electrons without direct contact
A charged object attracts neutral objects
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