What is the direction of conventional current? Electrical forces are produced by electrical charges.C. Study.com has answers to your toughest physics homework questions with detailed, step by step explanations. What is meant by electric current? 29. 18. Electrons can be removed from atoms and accumulated to produce a negative charge.B. The circle next to the answer will turn yellow. 35. What if you can't find your question in our library? Because R=V/I, resistance and current are inversely proportional. A. nucleus B. entire atom acting as a unit C. positively charged protons D. negatively charged electrons. Tick onebox. Summary notes, revision videos and past exam questions by topic for AQA Physics GCSE Topic 1 - Energy 2. 23. If an equation is given then use it, it’s not a trick. Give the name of components which is designed to oppose the flow of current. 28. Make sure you read the question carefully so you understand what you are being asked to do. An electrical energy is the energy of moving electrons. AS-Physics-Electricity-Complete-Circuits-2-Answers-AQA-Edexcel-OCR : Download AS-Physics-Electricity-Complete-Circuits-Questions-AQA-Edexcel : Download AS-Physics-Electricity-Complete-Circuits-Answers-AQA-Edexcel : Download Calculate the efficiency of the windmill. A series circuit consists of three resistors with values of 140 , 250 , and 220 . In this case you should find the correct equation and apply it in your working. wiper and resistor trackC. 34. So it is called as a conductor. Here you can find MCQs on Current Electricity with Answers for physics subject. He takes 10 m of this wire. A. Which of the following is true of electrical forces? With multiple-choice questions like this, be careful to tick the correct number of boxes – in this case, just one. R=ρL/AD. 5. 20. The resistance of the material depends on : 31. If you tick more than the specified number, you will get no marks. Our tips from experts and exam survivors will help you through. 2. 39. Calculate the number of electrons that flows through any section of the … AQA GCSE Physics exam revision with questions & model answers for Energy Transfers. Use the equation below: You must show how you work out your answer. Explanation: Semi-insulators, which sometimes conduct and sometimes insulate. Other questions will ask you to use the ‘Physics Equation Sheet’. Electrical forces are produced by electrical charges. For example, in this question, it is unlikely t… What are the different parts of a rheostat? entire atom acting as a unitC. None of the above, The rate of flow of an electric charge is known as electric current, A. Infinite resistanceB. Two resistors are 1.4 k each. as AC. The relation between potential difference (V) and current (I) is : 32 The relation between the potential difference (V) and current (I) was discovered by : The relation between potential difference (V) and current (I) was discovered by Ohm. electric currentD. Like charges attract, unlike charges repel. Electrical forces are weaker than gravitational forces. Physics Topic By Topic Questions and Answers for All Topics in Form 1, Form 2, Form 3 and Form 4 for Kenya Secondary Schools in preparation for KCSE . Electricity. According to Ohm’s law, if voltage increases and resistance stays the same: SO if resistance constant, AND if voltage increases Then current also increases because proportional to each other. This is all about MCQs on current electricity for subject Physics. Students can solve NCERT Class 10 Science Electricity Multiple Choice Questions with Answers to know their preparation level. negatively charged electrons, Electric current originates from negatively charged electrons. What is one of the reasons for building wind turbines a few miles out to sea? C. An electric field moving through a conductor, Explanation: to produce a sustained electric current A source of energy, A voltage source. These Current Electricity Multiple Choice Questions will be useful for engineering students, faculty members and other professionals. Below are current electricity physics MCQs with answers. When two positively charged materials will be placed close together then : Explanation: Like charge Repel each other, 18. Made by expert teachers. 37 The rate of flow of an electric charge is known as : A. electric potentialB. Core 1 . Explanation: 1 coulomb is the charge carried by 6.25*10^18 electrons, 22. Instructions: To take the quiz, click on the answer. A. electric charge in units of volts per s. C. electric charge in units of coulomb per s. D. electrons in units of electrons per s. Explanation: electric charge in units of coulomb per s. 12.

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