AIC SS 2 Physics Exam for 3rd Term 2022/23
 1. Two point charges, +Q and -Q, are placed 5 cm apart. What is the electric field strength at a point midway between them?A) 0 N/CB) 2kQ/ε₀C) kQ/4ε₀D) kQ/2ε₀2. A wire of resistance 8 Ω is connected in series with another wire of resistance 4 Ω. What is the equivalent resistance?A) 4 ΩB) 3 ΩC) 12 ΩD) 8 Ω3. A circuit has a 12 V battery connected to three resistors in series: 4 Ω, 6 Ω, and 8 Ω. What is the total current flowing through the circuit?A) 0.5 AB) 3 AC) 1 AD) 2 A4. Ohm's law states that the current through a conductor is directly proportional toA) Voltage across the conductorB) Resistance of the conductorC) Square of the voltage across the conductorD) Inverse of the resistance of the conductor5. A straight wire carries a current of 2 A. What is the magnitude of the magnetic field at a distance of 4 cm from the wire?A) 2.0 × 10-6 TB) 4.0 × 10-6 TC) 3.0 × 10-6 TD) 1.0 × 10-6 T6. The magnetic field inside a solenoid is stronger whenA) The number of turns is increasedB) The current through the solenoid is decreasedC) The length of the solenoid is increasedD) The diameter of the solenoid is decreased7. In an AC circuit, the voltage across a resistor is given by V = V₀sin(ωt). What is the peak voltage?A) √2V₀B) 2V₀C) V₀D) V₀/28. A charge of 2 μC experiences a force of 4 N in an electric field. What is the magnitude of the electric field?A) 16 N/CB) 2 N/CC) 8 N/CD) 4 N/C9. A circuit has a 12 V battery connected to three resistors in parallel: 2 Ω, 3 Ω, and 6 Ω. What is the total resistance of the circuit?A) 4 ΩB) 2 ΩC) 1 ΩD) 3 Ω10. Which of the following materials is a good conductor of electricity?A) GlassB) WoodC) RubberD) Copper11. A moving charge experiences a magnetic force whenA) The charge is moving parallel to the magnetic fieldB) The charge is moving perpendicular to the magnetic fieldC) The charge is moving opposite to the direction of the magnetic fieldD) The charge is at rest12. Coulomb's law states that the force between two charges is directly proportional toA) The square of the distance between themB) The product of their magnitudesC) All of the aboveD) The inverse of the square of the distance between13. A circuit has a 9 V battery connected to a resistor. If the current in the circuit is 3 A, what is the resistance of the resistor?A) 6 ΩB) 27 ΩC) 3 ΩD) 9 Ω14. The unit of electric power isA) Joule (J)B) Watt (W)C) Volt (V)D) Ohm (Ω)15. The magnetic field inside a solenoid with a ferromagnetic core isA) Weaker than in an air-core solenoidB) The same as in an air-core solenoidC) Stronger than in an air-core solenoidD) Zero16. The force experienced by a current-carrying conductor in a magnetic field is maximum when the angle between the conductor and magnetic field isA) 0 degreesB) 45 degreesC) 180 degreesD) 90 degrees17. Ampere's law relates the magnetic field around a closed loop to theA) Voltage across the loopB) Resistance of the loopC) Electric field inside the loopD) Current passing through the loop18. The impedance of a purely resistive circuit is equal toA) The reactance of the circuitB) ZeroC) The resistance of the circuitD) The sum of the resistance and reactance19. The state of a body at rest or in uniform motion is .........A) EquilibriumB) EquilibrantC) MomentD) Resultant20. ......... is the single force acting alone which would produce the same effect as the two forces put togetherA) EquilibrantB) ResultantC) MomentD) Equilibrium21. When taking a penalty kick, a player applied a force of 30N for a period of 0.05 seconds if the mass of the ball is 0.075 kg. Calculate the speed within which the ball moved.A) 35 m/sB) 30 m/sC) 20 m/sD) 25 m/s22. A ball of mass 0.5 kg moving at a velocity of 28 m/s is suddenly hit by a force of 6N for 0.04 second. Find the new velocity.A) 28.048 m/sB) 18.06 m/sC) 26.6 m/sD) 18 m/s23. ......... is referred to as the turning effect force about a point or axisA) EquilibrantB) ResultantC) MotionD) Moment24. In elastic, collision ......A) NoneB) Gain energyC) Loss momentumD) Loss energy25. The two types of curved mirrors are ..........A) Concrete and CorneredB) Conflict and ComplexC) Concave and ConvexD) Artificial and Natural26. ......... is the line drawn through the poles of a mirror and the center of curvatureA) Principal focusB) Radius of curvatureC) Principal axisD) Pole27. The point at which all rays parallel and close to the principal axis converge at reflection is ........A) PoleB) Center of curvatureC) Principal focusD) Principal axis28. Which of these is not true when object is located beyondA) The image formed is diminishedB) The image formed is invertedC) The image formed is realD) The image formed is same size as object29. The two types of prism are ......... and ........A) Longitudinal and TransverseB) Linear and CircularC) Concave and ConvexD) Rectangular and Triangular30. The velocity of sound can be measured using the following method exceptA) Stationary methodB) Resonance tune methodC) Echo methodD) Wave method
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