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What is the kilowatt-hour consumption of a 40 W lamp if it remains on for 1750 h? A: 43.75 B: 70 C: 43,750 D: 70,000 Correct ans is B).explain?
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What is the kilowatt-hour consumption of a 40 W lamp if it remains on ...
Here he gives us kwh consumption it means 1000---->1hr.
So for making 40 watt to 1000 watt we need to multiply.
40*25----->1000.
It means if a light having 40 watt for 1750 hr.
We need divide the term with multiple term.
40 * 25 * x = 1750 * 40.
x = 1750 / 25.
x = 70.
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What is the kilowatt-hour consumption of a 40 W lamp if it remains on ...
Kilowatt-hour Consumption of a 40 W Lamp
To determine the kilowatt-hour consumption of a 40 W lamp that remains on for 1750 hours, we'll follow these steps:
Step 1: Calculate the energy consumption in watt-hours
The energy consumption in watt-hours can be calculated by multiplying the power of the lamp (40 W) by the time it remains on (1750 h):
Energy consumption (in watt-hours) = Power (in watts) x Time (in hours)
Energy consumption = 40 W x 1750 h
Energy consumption = 70,000 watt-hours
Step 2: Convert watt-hours to kilowatt-hours
Since kilowatt-hours are a more commonly used unit for energy consumption, we need to convert the watt-hours to kilowatt-hours. To do this, we divide the watt-hours by 1000:
Energy consumption (in kilowatt-hours) = Energy consumption (in watt-hours) / 1000
Energy consumption = 70,000 watt-hours / 1000
Energy consumption = 70 kilowatt-hours
Therefore, the kilowatt-hour consumption of a 40 W lamp that remains on for 1750 hours is 70 kilowatt-hours.
Summary:
- The energy consumption in watt-hours is calculated by multiplying the power of the lamp (40 W) by the time it remains on (1750 h).
- The energy consumption in watt-hours is found to be 70,000 watt-hours.
- To convert watt-hours to kilowatt-hours, we divide the watt-hours by 1000.
- The energy consumption in kilowatt-hours is calculated to be 70 kilowatt-hours.
To determine the kilowatt-hour consumption of a 40 W lamp that remains on for 1750 hours, we'll follow these steps:
Step 1: Calculate the energy consumption in watt-hours
The energy consumption in watt-hours can be calculated by multiplying the power of the lamp (40 W) by the time it remains on (1750 h):
Energy consumption (in watt-hours) = Power (in watts) x Time (in hours)
Energy consumption = 40 W x 1750 h
Energy consumption = 70,000 watt-hours
Step 2: Convert watt-hours to kilowatt-hours
Since kilowatt-hours are a more commonly used unit for energy consumption, we need to convert the watt-hours to kilowatt-hours. To do this, we divide the watt-hours by 1000:
Energy consumption (in kilowatt-hours) = Energy consumption (in watt-hours) / 1000
Energy consumption = 70,000 watt-hours / 1000
Energy consumption = 70 kilowatt-hours
Therefore, the kilowatt-hour consumption of a 40 W lamp that remains on for 1750 hours is 70 kilowatt-hours.
Summary:
- The energy consumption in watt-hours is calculated by multiplying the power of the lamp (40 W) by the time it remains on (1750 h).
- The energy consumption in watt-hours is found to be 70,000 watt-hours.
- To convert watt-hours to kilowatt-hours, we divide the watt-hours by 1000.
- The energy consumption in kilowatt-hours is calculated to be 70 kilowatt-hours.
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What is the kilowatt-hour consumption of a 40 W lamp if it remains on for 1750 h? A: 43.75 B: 70 C: 43,750 D: 70,000 Correct ans is B).explain?
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What is the kilowatt-hour consumption of a 40 W lamp if it remains on for 1750 h? A: 43.75 B: 70 C: 43,750 D: 70,000 Correct ans is B).explain? for Class 10 2025 is part of Class 10 preparation. The Question and answers have been prepared according to the Class 10 exam syllabus. Information about What is the kilowatt-hour consumption of a 40 W lamp if it remains on for 1750 h? A: 43.75 B: 70 C: 43,750 D: 70,000 Correct ans is B).explain? covers all topics & solutions for Class 10 2025 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for What is the kilowatt-hour consumption of a 40 W lamp if it remains on for 1750 h? A: 43.75 B: 70 C: 43,750 D: 70,000 Correct ans is B).explain?.
What is the kilowatt-hour consumption of a 40 W lamp if it remains on for 1750 h? A: 43.75 B: 70 C: 43,750 D: 70,000 Correct ans is B).explain? for Class 10 2025 is part of Class 10 preparation. The Question and answers have been prepared according to the Class 10 exam syllabus. Information about What is the kilowatt-hour consumption of a 40 W lamp if it remains on for 1750 h? A: 43.75 B: 70 C: 43,750 D: 70,000 Correct ans is B).explain? covers all topics & solutions for Class 10 2025 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for What is the kilowatt-hour consumption of a 40 W lamp if it remains on for 1750 h? A: 43.75 B: 70 C: 43,750 D: 70,000 Correct ans is B).explain?.
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