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 Question 1: By what other name is the unit joule/coulomb called ? Solution : Volt Question 2: Which of the following statements correctly defines a volt ? (a) a volt is a joule per ampere. (b) a volt is a joule per coulomb. Solution : (b) a volt is a joule per coulomb. Question 3: (a) What do the letters p.d. stand for ? (b) Which device is used to measure p.d. ? Solution : (a) p.d. stands for potential difference. (b) Voltmeter is used to measure p.d. Did you check the Prevous Year Questions of Class 10 Electricity? Question 4: What is meant by saying that the electric potential at a point is 1 volt ? Solution : Electric potential at a point is 1 volt means 1 joule of work is done in moving 1 unit positive charge from infinity to that point. Question 5: How much work is done when one coulomb charge moves against a potential difference of 1 volt ? Solution : Potential difference = 1 V Charge moved = 1C Work done = Potential difference x Charge moved = 1 x 1 = 1 J Question 6: What ...

 Long type of questions a) What do you understand by the term “potential difference”? b) What is meant by saying that the potential difference between two points is 1 vol c) What is the potential difference between the terminals of a battery if 250 joules of work is required to transfer 20 coulombs of charge from one terminal of battery to the othe d) What is a voltmeter? How is a voltmeter connected in the circuit to measure the potential difference between two points. Explain with the help of a diagra e) State whether a voltmeter has a high resistance or a low resistance. Give reason for your answe Answe a) The amount of work done in moving a unit positive charge from one point to the other is defined as the potential difference between the two point b) The potential difference between two points is 1 volt means 1 joule of work is done to move 1 coulomb of electric charge from one point to anothe c) Give Work done = 25 Charge moved = 2 Potential difference = We know that potentia...

                              Light and reflection All short type questions very short answer type questions q1. by what other name is the unit joule/coulomb calle answer the other name of the unit joule/coulomb is vol volt is the si unit of electric potential or of electromotive force. it is represented by the letter v. volt is a representation of the potential difference between the two points of a current-carrying wire of 1 ampere such that when the power dissipates between these two points, it is equal to 1 wat q2. which of the following statements correctly defines a vol a) a volt is a joule per ampe b) a volt is a joule per coulo answe the correct statement that defined a volt is b) a volt is a joule per coulo volt is a joule per coulomb because joule is a unit of work done while coulomb is a unit for the charge. the ratio of work done to the charge is the definition of potential and volt is the unit of pot...