This physics problem tests your understanding of fundamental physical laws and their applications. The step-by-step solution below breaks down the problem using relevant equations and physical reasoning.
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Here is the making guide for your questions: QUESTION 9 9.1 Explain, in words, the meaning of an emf of 12 V. An electromotive force (emf) of 12 V means that the battery supplies 12 Joules of electrical energy to every 1 Coulomb of charge that passes through it. This energy is converted from chemical energy within the battery. 9.2 Calculate the current that passes through the electrical device. Step 1: Use the power formula for the electrical device. The power dissipated by the electrical device is given as P_device = 5 W, and its resistance is R_device = 5 . The formula for power is $P = I ✂️ _That answer was long and got cut off. Reply continue and I'll finish it._