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right000Potential difference worksheetBasic: Facts & calculations without rearrangingWhat is the definition of potential difference?What do we use to measure potential difference & how do we connect this is a circuit?Write the equation that relates energy transferred, charge and potential difference. Also write the units for each of the terms. What is an alternative unit for potential difference in terms of joules and coulombs?Calculate the energy transferred if:Q = 15 C, V = 20 V. b) Q = 0.2 C, V = 150 V. c) Q = 200 C, V = 0.01 V. Q = 0.05 C, V = 40 V. e) Q = 50 C, V = 2 V. f) Q = 40 C, V = 40 V. Medium: Rearranging needed as well as unit conversions (hints in the dashed boxes). Calculate the charge if:E = 100 J, V = 10 V. b) E = 20 J, V = 0.02 V. c) E = 460 J, V = 230 V. E = 400 J, V = 2 V. e) E = 8,000 J, V = 12 V. f) E = 2.5 J, V = 10 V. Calculate the potential difference if:E = 500 J, Q = 25 C. b) E = 3 J, Q = 0.02 C. c) E = 80 J, Q = 50 C. E = 15,000 J, Q = 7.5 C. e) E = 45 J, Q = 2 C. f) E = 90 J, Q = 10 C. An energy of 4 kJ is transferred while a phone is charging. The potential difference supplied by the phone charger is 12 V. right26758kJ → J × 100000kJ → J × 1000How many joules are in 4 kJ?How much charge has been supplied to the mobile phone?An Xbox has an energy of 460 kJ supplied to it, with a potential difference of 230V. How many joules are in 460 kJ?How much charge has been supplied to the Xbox?right170180mC → C ÷ 100000mC → C ÷ 1000A charge of 40 mC is supplied to a resistor, and an energy of 800 J is transferred.How many coulombs are in 40 mC?What is the potential difference across the resistor?Hard: Rearranging & unit conversions are both required. The later questions are some very hard multi-step calculations. A Tesla battery supplies a potential difference of 375 V. If an energy of 750 kJ is supplied to the cars motor, what is the charge? A laptop is being charged at a potential difference of 230 V. If there’s a charge of 20 kC, how much energy is transferred to the laptop?A circuit has a current of 20 mA flowing into it for a time of 2 minutes. There is a potential difference of 9 V across the circuit. Calculate the charge transferred into the circuit.Calculate the energy transferred to the circuit. A TV has a potential difference supply of 230 V. A current of 2 A is flowing into the TV for a time of 2 hours. Calculate the energy transferred to the TV. A Bluetooth speaker has a potential difference supply of 5 V. A current of 500 mA is flowing into it for a time of 30 minutes. Calculate the energy transferred to the speaker. ................
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