Asked: U.P. Lower Sub. (Pre) 2009medium Level
QUESTION STATEMENT:द्विभाषी / Bilingual
100 वॉट के एक बल्ब को चार घंटे तक स्विच ऑन रखा जाता है। प्रयुक्त विद्युत ऊर्जा की इकाइयां होंगी-
A 100-watt bulb is kept switched on for 4 hours. The units of electrical energy consumed will be:
SELECT CORRECT OPTION:
A
400
B
25
C
4
D
0.4
Correct
Official Solution & Explanation:
Correct Answer: Option D(0.4)
खपत हुई विद्युत ऊर्जा $= \frac{100 \times 4}{1000} = 0.4\text{ किलोवॉट घंटा} = 0.4\text{ यूनिट}$।
Energy consumed $= \frac{100 \times 4}{1000} = 0.4\text{ kWh} = 0.4\text{ units}$.
Subject: General Science•Topic: Electric Current•Subtopic: Electric Current
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