Electricity Calculations,GCSEQUESTIONS PAPER. EXAM PREDICTOR. LATEST

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1. Calculate the amount of charge that flows when a current of 3.8 A flows for 9 minutes. 2. Calculate the current when 1.9 C of charge flows in 18 seconds. 3. Calculate the potential difference a... cross a component with a resistance of 260 Ω when a current of 35 mA flows through it. 4. Calculate the resistance of a component when a potential difference of 1.5 V causes a current of 23 mA to flow. 5. Calculate the power output of an appliance with a potential difference of 240 V and a current of 10.5 A. 6. Calculate the current through a 3.1 kW appliance when a potential difference of 200 V is applied. 7. Calculate the energy transferred when a 4.6 kW appliance is turned on for 30 minutes. 8. Calculate the amount of charge that flows through an appliance when a potential difference of 24 V transfers 2.7 kJ of energy. 9. Calculate the power output of a component with a resistance of 170 kΩ when a 1700 V potential difference is applied. 10. Calculate the decrease in power loss when the transmission of electrical energy through a power line with a resistance of 1600 Ω is reduced from 18 A to 7 A. 11. Calculate the power output of an appliance that has a charge flow of 280 C in 3 minutes when a 230 V potential difference is applied. [Show More]

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