RRB JE practice question
An electric geyser rated 1500 W is used for 2 hours every day. How many units of electricity does it consume in 30 days?
From a RRB JE Science practice set · Science
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Correct answer: (C) 90 units
One unit = 1 kWh. Power = 1500 W = 1.5 kW. Energy per day = 1.5 × 2 = 3 kWh. For 30 days = 3 × 30 = 90 units.
हिंदी में प्रश्न
1500 W సామర్థ్యం గల ఒక ఎలక్ట్రిక్ గీజర్ను ప్రతిరోజూ 2 గంటలు వాడితే, 30 రోజులలో ఎన్ని యూనిట్ల విద్యుత్ ఖర్చవుతుంది?
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सही उत्तर: (C) 90 units
1500 W = 1.5 kW. రోజుకు 1.5 × 2 = 3 యూనిట్లు. 30 రోజులకు 3 × 30 = 90 యూనిట్లు.
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