Question 11 MarkMiniature circuit breakers act as safety devices.AnswertrueView full question & answer→
Question 21 MarkElectric meters measure the consumption of energy in joules.AnswerFalse.Correct : Electric meter measure the consumption of energy in kilowatt-hours.View full question & answer→
Question 31 MarkThe cables that bring electricity to our homes consist of five wires.AnswerFalse.Correct : The cables that bring electricity to our homes consist of three wires.View full question & answer→
Question 41 MarkLightning is caused due to discharge between similarly charged clouds.AnswerFalse.Correct : Lightning is caused due to discharge between oppositely charged clouds.View full question & answer→
Question 51 MarkThe leaves of a gold$-$leaf electroscope are made of brass.AnswerFalse. Correct : The leaves of a gold$-$leaf electroscope are made of gold.View full question & answer→
Question 61 MarkThe force of attraction or repulsion between two charged bodies is called gravitational force.AnswerFalse.Correct : The force of attraction or repulsion between two charged bodies is called electrostatic forceView full question & answer→
Question 71 MarkCharges can be exchanged between two bodies by friction.AnswertrueView full question & answer→
Question 81 MarkNeutrons are present inside the nucleus of an atom.AnswertrueView full question & answer→
Question 91 MarkIf an object transfer its electrons to another object, it becomes negatively charged.AnswerFalse.Correct : If an object transfer its electrons to another object, it becomes positively charged.View full question & answer→
Question 101 MarkTwo balloons rubbed with hair will attract each other.Answer.False.Correct : Two balloons rubbed with hair will repel each other.View full question & answer→
Question 111 MarkA conductor held in hand can be charged by rubbing it with a silk cloth.AnswerFalse.Correct : A conductor held in hand cannot be charged by rubbing it with a silk clothView full question & answer→
Question 121 MarkA metal rod can be charged if an ebonite rod rubbed with woollen cloth is brought near it.AnswerTrue.View full question & answer→
Question 131 MarkWhen a glass rod is rubbed with a silk cloth, the glass rod acquires a negative charge.AnswerFalse.Correct : When a glass rod is rubbed with a silk cloth, the glass rod acquires a positive charge.View full question & answer→