Physics - Electricity - Circuits - Electrical power and energy - Power and Energy Problems

10 problems. P1: 'A bulb draws 0.5A at 240V. Power = ___ W' (120). P2: 'A 6Ω resistor with 2A through it. P = I²R = ___ W' (24). P3: 'A 1000Ω resistor with 50V across it. P = V²/R = ___ W' (2.5). P4: 'A 2kW heater on for 4 hours. Energy in kWh = ___' (8). P5: 'Cost at 12p per kWh = ___ p' (96). P6:

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Physics - Electricity - Circuits - Electrical power and energy - Power and Energy Problems
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Physics - Electricity - Circuits - Electrical power and energy - Power and Energy Problems

vivmagarwal
vivmagarwalJan 29, 2026

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10 problems. P1: 'A bulb draws 0.5A at 240V. Power = ___ W' (120). P2: 'A 6Ω resistor with 2A through it. P = I²R = ___ W' (24). P3: 'A 1000Ω resistor with 50V across it. P = V²/R = ___ W' (2.5). P4: 'A 2kW heater on for 4 hours. Energy in kWh = ___' (8). P5: 'Cost at 12p per kWh = ___ p' (96). P6:

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PhysicsElectricity - CircuitsClass 10, Grade 9, IGCSE, Class 10, MYP Grade 10

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