1) An electric field line is a line drawn in an electric field showing the direction of the force on a negative charge placed in the field. a) false b) true 2) Why are aeroplane tyres made of conducting rubber? a) to prevent an explosion b) to ensure faster landing c) to prevent friction with the landing groud d) none of the above 3) The human body is an electrical insulator. a) true b) false 4) Electric field strength at a point in an electric field is the force that would be exerted on a unit charge placed at that point in the field. a) false b) true 5) name the unit of electric charge a) coulomb b) newtons 6) A large buildup of charge at a pointed end of a conductor is called the a) electro point b) potential charge c) electro charge d) the point effect 7) A gold leaf electroscope can be used to test whether an object is a conductor or an insulator. a) true b) fasle 8) All static charge resides on the ________ of a conductor. a) inside b) outside c) centre d) top 9) Electric field strength is a vector quantity. a) true b) false 10) Which law states that the force between two point charges is directly proportional to the product of the charges and inversely proportional to the square of the distance between them? a) lenzes law b) coulombs law c) faradays law d) Hookes law

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