E.M.F - Electro Motive Force 0.0 / 5 ? PhysicsD.C. ElectricityASWJEC Created by: TigerLilly321Created on: 06-04-17 22:45 What is the E.M.F definition? The total energy transferred by source to each coulomb of charge passing through it 1 of 14 When charge flows through a cell it is given what by the cell. Energy 2 of 14 What is the Emf of the cell? The number of joules given to each coulomb of charge that passes through the cell. 3 of 14 Emf is a type of what? potential difference/voltage 4 of 14 What is Emf measured in? Volts (V) 5 of 14 An electrical cell is made from materials, such as what? metals or chemicals 6 of 14 Why does a cell have resistance? All materials have some resistance 7 of 14 Some energy is wasted as what as soon as a current is drawn? Heat 8 of 14 What is the symbol for internal resistance? r 9 of 14 What is the typical resistance value for a rechargeable battery? 0.2 Ohms 10 of 14 What is the typical resistance value for a car battery? 0.01 Ohms 11 of 14 What is the symbol for "lost volts"? Ir 12 of 14 Equation for E total in series E1 +E2 13 of 14 Equation for r total in series r1 + r2 14 of 14
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