Current Electricity Charging Discharging Of Capacitors Question 562
Question: An electric lamp is marked 60 W, 230 V. The cost of a 1 kWh of energy is Rs. 1.25. The cost of using this lamp 8 hrs a day for 30 day is
[Kerala (Med.) 2002]
Options:
A) Rs. 10
B) Rs. 16
C) Rs. 18
D) Rs. 20
Show Answer
Answer:
Correct Answer: C
Solution:
Total kWh consumed $ =\frac{60\times 8\times 30}{1000}=14.4 $ Hence cost $ =14.4\times 1.25=18,Rs $
BETA
