SSC GD Constable previous year question
The power consumption of an electrical appliance is directly proportional to the square of the voltage applied. If an appliance consumes 150 watts on 120 volts, how much power (in watts) will it consume on 240 volts?
Asked in SSC GD Constable 2025: 10 Feb 2025 Shift 3 (Evening) · Quantitative Aptitude
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Correct answer: (B) 600
P ∝ V²; 240/120=2, so P scales by 2²=4; new power = 150×4 = 600 watts.
हिंदी में प्रश्न
किसी विद्युत उपकरण की बिजली खपत, अनुप्रयुक्त वोल्टता के वर्ग के अनुक्रमानुपाती है। यदि उपकरण 120 वोल्ट वोल्टता होने पर 150 वाट की खपत करता है, तो 240 वोल्ट पर यह कितनी बिजली (वाट में) खपत करेगा?
उत्तर जाँचने के लिए किसी विकल्प पर टैप करें।
उत्तर और व्याख्या देखें
सही उत्तर: (B) 600
P ∝ V²; 240/120=2, अतः P, 2²=4 गुना बढ़ेगा; नई शक्ति = 150×4 = 600 वाट।
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