Asked: U.P. P.C.S. (Pre) Exam. 2017medium Level
QUESTION STATEMENT:द्विभाषी / Bilingual
एक सुरंग में 100 वॉट क्षमता वाले पांच बल्ब लगातार 20 घंटे तक जलाए जाते हैं। संपूर्ण विद्युत खर्च होगी-
In a tunnel, five 100-watt bulbs are kept glowing continuously for 20 hours. Total electricity consumed will be:
SELECT CORRECT OPTION:
A
एक यूनिट
One unit
B
दो यूनिट
Two units
C
दस यूनिट
Ten units
Correct
D
बीस यूनिट
Twenty units
Official Solution & Explanation:
Correct Answer: Option C(दस यूनिट)
$$\text{कुल विद्युत खपत} = 5 \times \frac{100 \times 20}{1000} = 5 \times 2 = 10\text{ यूनिट}$$
$$\text{Total consumption} = 5 \times \frac{100 \times 20}{1000} = 10\text{ units}$$
Subject: General Science•Topic: Electric Current•Subtopic: Electric Current
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