1) What is the unit of electric charge? a) Watt b) Newton c) Joule d) Coulomb 2) What is the charge of an electron? a) Positive b) Negative c) Neutral d) Variable 3) What is Coulomb's Law? a) V = IR b) E = mc^2 c) F = kq1q2/r^2 d) P = IV 4) What is the electric field inside a conductor? a) Zero b) Constant c) Infinite d) Variable 5) What is the SI unit of electric field? a) Joule b) Newton c) Coulomb d) Volt/meter 6) What is the principle of superposition? a) Sum of fields b) Product of fields c) Difference of fields d) Ratio of fields 7) What is the potential difference? a) Power b) Current c) Resistance d) Voltage 8) What is the charge of a proton? a) Negative b) Positive c) Neutral d) Variable 9) What is an electric dipole? a) Neutral object b) Two similar charges c) Two opposite charges d) Magnetic field 10) What is Gauss's Law? a) F = ma b) Φ = Q/ε₀ c) V = IR d) P = IV 11) What is the electric flux? a) Φ = EAsinθ b) Φ = EAcosθ c) Φ = EA d) Φ = E/A 12) What is the dielectric constant? a) K b) R c) C d) V 13) What is the effect of a dielectric? a) Reverses polarity b) Decreases capacitance c) No effect d) Increases capacitance 14) What is the capacitance unit? a) Volt b) Coulomb c) Farad d) Ohm 15) What is the formula for capacitance? a) C = VQ b) C = V/Q c) C = QV d) C = Q/V 16) What is the electric potential energy? a) U = q^2 b) U = qE c) U = q/r d) U = qV 17) What is the effect of grounding? a) Neutralizes charge b) Increases charge c) Decreases charge d) No effect 18) What is the formula for electric field? a) E = Fq b) E = q/F c) E = F/q d) E = qF 19) What is the permittivity of free space? a) μ₀ b) ε₀ c) k d) g 20) What is the principle of charge conservation? a) Total charge constant b) Charge can be created c) Charge can be destroyed d) Charge is variable

Electrostatics Quiz

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