AIC SS 2 Physics Revision Test 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) kQ/2ε₀B) 2kQ/ε₀C) 0 N/CD) kQ/4ε₀2. A positive charge is moved against the direction of an electric field. What happens to the potential energy of the charge?A) DecreasesB) Depends on the charge magnitudeC) Remains constantD) Increases3. A parallel plate capacitor with plate area A and separation d is connected to a battery of voltage V. What is the electric field between the plates?A) V/(ε₀Ad)B) Vd/(ε₀A)C) V/(ε₀d)D) V/(ε₀A)4. A wire of resistance 8 Ω is connected in series with another wire of resistance 4 Ω. What is the equivalent resistance?A) 8 ΩB) 3 ΩC) 4 ΩD) 12 Ω5. 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) 3 AB) 1 AC) 2 AD) 0.5 A6. Ohm's law states that the current through a conductor is directly proportional toA) Resistance of the conductorB) Square of the voltage across the conductorC) Inverse of the resistance of the conductorD) Voltage across the conductor7. A current-carrying wire produces a magnetic field. What happens to the magnetic field if the current is doubled?A) QuadruplesB) DoublesC) Remains the sameD) Halves8. 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) 3.0 × 10-6 TB) 4.0 × 10-6 TC) 2.0 × 10-6 TD) 1.0 × 10-6 T9. The magnetic field inside a solenoid is stronger whenA) The current through the solenoid is decreasedB) The number of turns is increasedC) The diameter of the solenoid is decreasedD) The length of the solenoid is increased10. In an AC circuit, the voltage across a resistor is given by V = V₀sin(ωt). What is the peak voltage?A) 2V₀B) V₀C) √2V₀D) V₀/211. The electric field inside a conductor in electrostatic equilibrium isA) ZeroB) Varies with distanceC) ConstantD) Varies with time12. Two point charges, +Q and -2Q, are placed 10 cm apart. At which point between the charges is the electric field zero?A) 2 cm from +QB) 8 cm from +QC) 6 cm from +QD) 4 cm from +Q13. A charge of 2 μC experiences a force of 4 N in an electric field. What is the magnitude of the electric field?A) 2 N/CB) 4 N/CC) 8 N/CD) 16 N/C14. 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) 2 ΩB) 4 ΩC) 3 ΩD) 1 Ω15. A wire of resistance 10 Ω carries a current of 2 A. What is the voltage across the wire?A) 12 VB) 21 VC) 20 VD) 2V16. Which of the following materials is a good conductor of electricity?A) CopperB) RubberC) GlassD) Wood17. The strength of the magnetic field inside a solenoid depends onA) The length and diameter of the solenoidB) The number of turns and current flowing through the solenoidC) The material of the solenoid coreD) The temperature of the solenoid18. A moving charge experiences a magnetic force whenA) The charge is moving perpendicular to the magnetic fieldB) The charge is moving opposite to the direction of the magnetic fieldC) The charge is moving parallel to the magnetic fieldD) The charge is at rest19. The charge is moving opposite to the direction of the magnetic fieldA) Ampere's lawB) Left-hand ruleC) Right-hand ruleD) Gauss's law20. In an AC circuit, the phase difference between the voltage and current is 90 degrees in aA) Purely resistive circuitB) Purely inductive circuitC) Purely capacitive circuitD) Combination of inductive and capacitive circuit21. The electric field lines around a positive point chargeA) CircularB) Radially inwardC) EllipticalD) Radially outward22. The electric field between two oppositely charged parallel plates isA) IndeterminateB) UniformC) Non-uniformD) Zero23. Coulomb's law states that the force between two charges is directly proportional toA) The square of the distance between themB) All of the aboveC) The product of their magnitudesD) The inverse of the square of the distance between24. 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) 3 ΩB) 9 ΩC) 6 ΩD) 27 Ω25. Kirchhoff's junction rule is based on the principle ofA) Conservation of chargeB) Conservation of energyC) Conservation of momentumD) Conservation of mass26. The unit of electric power isA) Volt (V)B) Joule (J)C) Ohm (Ω)D) Watt (W)27. The magnetic field inside a solenoid with a ferromagnetic core isA) Weaker than in an air-core solenoidB) ZeroC) Stronger than in an air-core solenoidD) The same as in an air-core solenoid28. The force experienced by a current-carrying conductor in a magnetic field is maximum when the angle between the conductor and magnetic field isA) 45 degreesB) 90 degreesC) 180 degreesD) 0 degrees29. Ampere's law relates the magnetic field around a closed loop to theA) Resistance of the loopB) Current passing through the loopC) Electric field inside the loopD) Voltage across the loop30. The impedance of a purely resistive circuit is equal toA) The reactance of the circuitB) ZeroC) The sum of the resistance and reactanceD) The resistance of the circuit31. The state of a body at rest or in uniform motion is .........A) EquilibrantB) ResultantC) EquilibriumD) Moment32. ......... is the product of the mass of the body and its velocityA) CollisionB) MomentumC) ResultantD) Motion33. ......... is the single force acting alone which would produce the same effect as the two forces put togetherA) EquilibrantB) EquilibriumC) MomentD) Resultant34. 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) 30 m/sB) 20 m/sC) 25 m/sD) 35 m/s35. ....... arises when two objects come in touch or in contact with each otherA) FrictionB) MomentumC) CollisionD) Elasticity36. One of these is an example of collisionA) AutomaticB) FlushC) DynamicD) Static37. 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) 18 m/sB) 18.06 m/sC) 28.048 m/sD) 26.6 m/s38. ......... is referred to as the turning effect force about a point or axisA) MotionB) EquilibrantC) MomentD) Resultant39. In elastic, collision ......A) Loss momentumB) Gain energyC) NoneD) Loss energy40. To every action there is an equal and opposite reaction is Newton'sA) First lawB) Second lawC) Fourth lawD) Third law41. The two types of curved mirrors are ..........A) Concrete and CorneredB) Artificial and NaturalC) Conflict and ComplexD) Concave and Convex42. ......... is the line drawn through the poles of a mirror and the center of curvatureA) Principal focusB) Principal axisC) Radius of curvatureD) Pole43. The point at which all rays parallel and close to the principal axis converge at reflection is ........A) Principal focusB) PoleC) Principal axisD) Center of curvature44. ......... can be defined as the ratio of the image distance to the object distanceA) Object distanceB) MagnificationC) Image heightD) Image distance45. Which of these is not true when object is located beyondA) The image formed is realB) The image formed is diminishedC) The image formed is same size as objectD) The image formed is inverted46. A constant used to express the nature of medium through which light rays is propagated is .........A) MagnificationB) Refractive indexC) ReflectionD) Refraction47. The two types of prism are ......... and ........A) Longitudinal and TransverseB) Linear and CircularC) Rectangular and TriangularD) Concave and Convex48. ......... is an unpleasant sound produced at different frequenciesA) ToneB) EchoC) BeatD) Noise49. The velocity of sound can be measured using the following method exceptA) Resonance tune methodB) Wave methodC) Echo methodD) Stationary method50. Which of these is not a characteristics of sound waves?A) LoudnessB) ToneC) PitchD) Ripple
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