Answer:
- <u>1,000W</u> (rounded to one significant figure)
Explanation:
I will answer in English.
The question is:
- <em>What is the power of a filament lamp that connects to the 220 V network, knowing that it has a resistance of 50 ohms?</em>
<em />
<h2>Solution</h2>
<em />
<em>Power</em>, <em>voltage</em>, <em>resistance</em>, and current, are related by either of the following equations:
Where:
- R is resistance in ohms (Ω)
- V is voltage in volts (V), and
- I is current in amperes (A)
Since you know the voltage (<em>220V</em>) and the resistance (<em>50Ω</em>), you can use the last equation:
Since the magnitude 50Ω has one significant figure, your answer should be rounded to one significant figure. That is <u>1,000W.</u>
The answer to the question is true
Answer:
Efficient and time-saving. Using shortcuts makes you more efficient at doing certain tasks on your computer. ...
Multi-tasking. Being a multi-tasker is sometimes required in life. ...
Health benefits.
Answer:
Explanation:It is very important to have a way to measure and quantify the flow of electrical current. When current flow is controlled it can be used to do useful work. The flow of electrons is measured in units called amperes. The term amps is often used for short
