Physics
Electrostatics
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#1 The SI unit of electric charge is
A) Coulomb
B) Ampere
C) Volt
D) Ohm
#2 The charge on an electron is
A) $1.6\times10^{-19} C$
B) $1.6\times10^{-20} C$
C) $1.6\times10^{-21} C$
D) $1.6\times10^{-22} C$
#3 The law of conservation of charge states that
A) Charge can be created
B) Charge can be destroyed
C) Charge can be transferred
D) The total charge in an isolated system remains constant
#4 Coulomb's law states that the force between two point charges is
A) Directly proportional to the product of charges
B) Inversely proportional to the square of the distance
C) Both A and B
D) Neither A nor B
#5 The value of Coulomb's constant k is
A) $9\times10^{9} N m^{2}/C^{2}$
B) $9\times10^{-9} N m^{2}/C^{2}$
C) $9\times10^{9} N m^{2}/C^{2}$
D) $9\times10^{-9} N m^{2}/C^{2}$
#6 The electric field intensity is defined as
A) Force per unit charge
B) Force per unit mass
C) Work per unit charge
D) Energy per unit charge
#7 The SI unit of electric field intensity is
A) N/C
B) V/m
C) Both A and B
D) Neither A nor B
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