What is the SI unit of electric charge? A. Joule B. Volt C. Coulomb D. Watt
Which of the following statements is true regarding the electric field lines? A. Electric field lines start at negative charges and end at positive charges B. Electric field lines start at positive charges and end at negative charges C. Electric field lines start and end at the same type of charges D. Electric field lines are always straight
What is the relationship between electric field and electric potential? A. Electric potential is the rate of change of electric field B. Electric field is the rate of change of electric potential C. Electric potential is the negative of electric field D. There is no relationship between electric field and electric potential
What is the principle of superposition in electrostatics? A. The total electric field at a point is the vector sum of electric fields due to individual charges B. The total electric potential at a point is the vector sum of electric potentials due to individual charges C. The total electric field at a point is the scalar sum of electric fields due to individual charges D. The total electric potential at a point is the scalar sum of electric potentials due to individual charges
Which of the following is an insulator? A. Copper B. Aluminium C. Glass D. Silver
Which of the following is a conductor? A. Plastic B. Wood C. Copper D. Rubber
What is the formula for the electric potential due to a point charge? A. V = kq/r B. V = kq/r^2 C. V = q/r D. V = q/r^2
Which of the following statements is true regarding the electrostatic force? A. The force is proportional to the square of the distance between the charges B. The force is inversely proportional to the square of the distance between the charges C. The force is proportional to the distance between the charges D. The force is inversely proportional to the distance between the charges
Which of the following statements is true regarding electric field strength? A. Electric field strength is a vector quantity B. Electric field strength is a scalar quantity C. Electric field strength has no direction D. Electric field strength is always perpendicular to the electric field lines
What is the value of the Coulomb constant? A. 9 x 10^9 Nm^2/C^2 B. 1 x 10^9 Nm^2/C^2 C. 9 x 10^-9 Nm^2/C^2 D. 1 x 10^-9 Nm^2/C^2
What is the formula for electric field due to a point charge? A. E = kq/r B. E = kq/r^2 C. E = q/r D. E = q/r^2
What is the SI unit of electric field strength? A. Joule B. Volt C. Coulomb D. Newton/Coulomb
Which of the following statements is true regarding the potential difference between two points? A. Potential difference is a vector quantity B. Potential difference is a scalar quantity C. Potential difference has no direction D. Potential difference is always perpendicular to the electric field line
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