Electricity.pptx
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Electricity is generated at power plants and transmitted through transmission lines. As electricity travels through transmission lines, it loses some power at each station. Electricity ultimately reaches homes and businesses, where it powers various appliances and devices. The document then provides examples of calculating current, voltage, energy used, and electrical costs for household devices based on power, time of use, and electricity rates.
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Electricity.pptx
- 1. Electricity Leonardo G. Piga, Jr., LPT with units in MAT Natural Sciences
- 2. 1 2 3 4 5 6
- 3. 1. Where does electricity start from? From the video, how is it generated/produced? 2. Where does the electricity travel? What happens as it reaches one station to another? 3. What is the last receiver of the electricity? How does it reach there?
- 4. Problem Solving 1. What is the current basic circuit that uses a 60-V battery and has four 20 Ω resistors? 2. What is the voltage of a basic circuit that has a pair of 30 Ω resistors and has an electric circuit of 5A?
- 5. Problem Solving 1. What is the current basic circuit that uses a 60-V battery and has four 20 Ω resistors? 2. What is the voltage of a basic circuit that has a pair of 30 Ω resistors and has an electric circuit of 5A?
- 6. E = Pt Energy used = (Power)(time) Cost = Energy used x Charge per kWh
- 7. 1. At home, Jessie and his siblings use 3 computers for their online class for 4 hours every day and together use 8.3 kW. How much energy is used in a day? 2. Anna watches TV on Saturday after her modular class on weekdays. If the TV has 400 watts and she used it for 8 hours, how much does it cost if electricity is ₱6.88 per kWh? Conversion 1 kW = 1000 W
- 8. Last February, Mrs. Terry’s electric meter reads 8765 kWh. How much will she pay for the power generation if the charge of the electric company per kWh is ₱6.88?
- 9. Activity Title: Cost Charges of Electricity Activity No.: 4.13 Learning Target: Compute for the electrical cost by a household. Concept Notes:
- 10. Activity Directions: Read and analyze the problems below. 1.What is the current basic circuit that uses a 90-V battery and has 20 Ω resistor? 2.If a circuit has a pair of 30 Ω resistors and has an electric circuit of 5 A, what is the voltage?
- 11. 3. What is the resistance of 95-volt battery with a current of 5.5 amperes?