What is the SI unit of electric potential? a) Joules b) Volts c) Coulombs d) Amperes
The electrostatic potential at a point in space due to a point charge is directly proportional to: a) The square of the distance from the charge b) The distance from the charge c) The magnitude of the charge d) The square root of the distance from the charge
What is the definition of capacitance? a) The amount of charge that can be stored in a conductor b) The ability of a conductor to conduct electricity c) The ability of a system to store electrical energy in an electric field d) The force required to move a charge through a conductor
What is the unit of capacitance? a) Joules b) Volts c) Coulombs d) Farads
What is the formula for calculating the capacitance of a parallel-plate capacitor? a) C = εA/d b) C = εd/A c) C = Ad/ε d) C = ε/Ad
What is the formula for calculating the electric field between the plates of a parallel-plate capacitor? a) E = σ/ε b) E = V/d c) E = Q/εA d) E = εA/Q
What is the relationship between capacitance and potential difference in a capacitor? a) Capacitance is directly proportional to potential difference b) Capacitance is inversely proportional to potential difference c) Capacitance and potential difference are unrelated d) Capacitance and potential difference have a logarithmic relationship
How does the capacitance of a parallel-plate capacitor change if the distance between the plates is doubled? a) It remains the same b) It doubles c) It halves d) It quadruples
What is dielectric constant? a) A measure of how well a material conducts electricity b) A measure of how much charge a material can hold c) A measure of how easily a material can be polarized d) A measure of how much energy can be stored in a material
What is the formula for calculating the capacitance of a capacitor with a dielectric material? a) C = ε0A/d b) C = εrε0A/d c) C = εrA/d d) C = εrε0Ad
What is the formula for calculating the energy stored in a capacitor? a) U = 1/2CV2 b) U = 1/2QV c) U = 1/2CQ2 d) U = 1/2CV
What is the relationship between the potential energy and the electric field in a capacitor? a) They are directly proportional b) They are inversely proportional c) They are unrelated d) They have a logarithmic relationship
What is the formula for calculating the electric potential at a point in space due to a charged sphere? a) V = kQ/r b) V = kQ/r2 c) V = kQ2/r d) V = kQ2/r2
What is the formula for calculating the electric field at a point in space due to a charged sphere? a) E = kQ/r b) E = kQ/r2 c) E = kQ2/r d) E = kQ2/r2
SOLUTION
What is the SI unit of electric potential? b) Volts
The electrostatic potential at a point in space due to a point charge is directly proportional to: c) The magnitude of the charge
What is the definition of capacitance? c) The ability of a system to store electrical energy in an electric field
What is the unit of capacitance? d) Farads
What is the formula for calculating the capacitance of a parallel-plate capacitor? a) C = εA/d
What is the formula for calculating the electric field between the plates of a parallel-plate capacitor? b) E = V/d
What is the relationship between capacitance and potential difference in a capacitor? a) Capacitance is directly proportional to potential difference
How does the capacitance of a parallel-plate capacitor change if the distance between the plates is doubled? c) It halves
What is dielectric constant? c) A measure of how easily a material can be polarized
What is the formula for calculating the capacitance of a capacitor with a dielectric material? b) C = εrε0A/d
What is the formula for calculating the energy stored in a capacitor? a) U = 1/2CV2
What is the relationship between the potential energy and the electric field in a capacitor? b) They are inversely proportional
What is the formula for calculating the electric potential at a point in space due to a charged sphere? b) V = kQ/r
What is the formula for calculating the electric field at a point in space due to a charged sphere? b) E = kQ/r2
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