Chapter 9 of 12
Concept Maps
Electrical Power and Household Circuits — Concept Maps
ICSE · Class 10 · Physics
4 concept maps of Electrical Power and Household Circuits for ICSE Class 10 Physics, each also written out as a text outline.
39 questions36 flashcards11 formulas & key relations5 concepts
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Chapter Overview: Electrical Power and Household Circuits
The map in words
- root（（Electrical Power
- and Household Circuits））
- Electrical Energy
- Formula W equals VIt
- Formula W equals I squared Rt
- Unit Joule and kWh
- 1 kWh equals 3.6 million J
- Energy Conversions
- Heat in Heaters
- Light in Bulbs
- Motion in Motors
- Sound in Speakers
- Electrical Power
- P equals W divided by t
- P equals VI equals I squared R
- Unit Watt
- Power Rating
- Resistance R equals V squared by P
- Safe Current i equals P by V
- Domestic Bill
- Energy in kWh
- Cost per Unit
- Heating Effect
- H equals I squared Rt
- Joules Law
- Applications
- Heaters use Nichrome
- Bulbs use Tungsten
- Fuses low melting alloy
- Transmission
- Generated at 11 kV
- Stepped Up to 132 kV
- Grid Substation 33 kV
- City Substation 220 V
- Why High Voltage
- Less Current
- Less Line Loss
- Household Wiring
- Three Wires
- Live Brown or Red
- Neutral Blue or Black
- Earth Green or Yellow
- Ring System
- Two current paths
- Independent fuses
- Parallel Connection
- Each gets 220V
- Works independently
- Three Wires
- Safety Components
- Fuse
- Low melting alloy
- In Live wire only
- Current rating P by V
- MCB
- Trips in 25 ms
- Resettable
- Switch
- In Live wire only
- Single pole
- Double pole
- Earthing
- Local earthing
- Appliance earthing
- Zero resistance path
- Three Pin Plug
- Earth top longest
- Live left
- Neutral right
- Fuse
- Electrical Energy
Chapter Concept Map: Electrical Power and Household Circuits
The map in words
- root（（Electrical Power
- and Household Circuits））
- Electrical Energy
- Formula W equals VIt
- Formula W equals I squared Rt
- Formula W equals V squared t over R
- Unit Joule
- Commercial Unit kWh
- 1 kWh equals 3.6 million J
- Effects of Current
- Chemical Effect
- Heating Effect
- Magnetic Effect
- Electrical Power
- Formula P equals VI
- Formula P equals I squared R
- Formula P equals V squared over R
- Unit Watt
- 1 kW equals 1000 W
- 1 HP equals 746 W
- Power Rating of Appliances
- Resistance R equals V squared over P
- Safe Current I equals P over V
- Domestic Energy
- kWh meter at home
- Units equals P in kW times hours
- Cost equals Units times Rate
- Heating Effect
- H equals I squared Rt
- H proportional to I squared
- H proportional to R
- H proportional to t
- Power Transmission
- Generated at 11 kV
- Step Up to 132 kV
- Step Down to 33 kV
- Step Down to 11 kV
- Step Down to 220 V
- High V Low I Low Loss
- Household Wiring
- Three Wires
- Live Wire Red or Brown
- Neutral Wire Black or Blue
- Earth Wire Green or Yellow
- Ring System
- Two paths to appliance
- Separate fuse per appliance
- Fault isolated
- Parallel Connection
- Each gets 220 V
- Independent operation
- Three Wires
- Safety Components
- Electric Fuse
- Low melting point alloy
- In Live Wire only
- Current rating I equals P over V
- MCB
- Trips in 25 milliseconds
- Reusable
- Replaces fuse
- Switches
- Single Pole
- Double Pole
- In Live Wire only
- Staircase Wiring
- Earthing
- Local Earthing
- Appliance Earthing
- Resistance less than 5 ohm
- Three Pin Plug
- Top Earth thick and long
- Left Live
- Right Neutral
- Electric Fuse
- Colour Coding
- Live Red to Brown
- Neutral Black to Light Blue
- Earth Green to Green Yellow
- Electrical Energy
Electrical Power and Household Circuits — Chapter Overview
The map in words
- root（（Electrical Power
- and Circuits））
- Electrical Energy
- W = VIt
- W = I2Rt
- W = V2t div R
- Unit: Joule
- Commercial: kWh
- 1 kWh = 3.6x106 J
- Electrical Power
- P = VI
- P = I2R
- P = V2 div R
- Unit: Watt
- 1 kW = 1000 W
- 1 HP = 746 W
- Power Rating
- Rated voltage and power on label
- R = V2 div P
- I safe = P div V
- Heating Effect
- H = I2Rt
- Joule Law
- Fuse works on this
- Household Wiring
- Transmission
- 11kV to 132kV to 33kV to 11kV to 220V
- Ring System
- Preferred
- Parallel connection
- Individual fuse and switch
- Components
- Fuse
- Live wire only
- Low melting alloy
- MCB
- 25ms response
- Reusable
- Switch
- Live wire only
- Single and Double pole
- Earthing
- Local earthing
- Appliance earthing
- Three Pin Plug
- Earth thick and long
- Live left
- Neutral right
- Fuse
- Transmission
- Colour Coding
- Live: Brown or Red
- Neutral: Blue or Black
- Earth: Green or Yellow
- Electrical Energy
Electrical power and safe household distribution of electric energy
The map in words
- Electrical power and safe household distribution of electric energy
- Electrical Energy
- Electrical Power
- Power Rating of Appliances
- Domestic Consumption of Electrical Energy
- Heating Effect of Electric Current
- Power Transmission
- Household Wiring System
- Parallel Connection of Appliances
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Explore DiagramsFrequently Asked Questions
What are the important topics in Electrical Power and Household Circuits for ICSE Class 10 Physics?
Key topics in Electrical Power and Household Circuits include Electrical Energy and Electrical Power, Power Rating and Domestic Energy Consumption, Transmission and Distribution of Power, Fuse, MCB, Switches, and Safety. Study these first, then practise questions on each for the ICSE Class 10 board exam.
What do the concept maps for Electrical Power and Household Circuits show?
The 4 maps show how the ideas in Electrical Power and Household Circuits connect: Chapter Overview: Electrical Power and Household Circuits; Chapter Concept Map: Electrical Power and Household Circuits. Each map is also written out as an outline on this page.
How should I revise Electrical Power and Household Circuits for the ICSE Class 10 board exam?
Learn the core ideas first, then work through the 39 practice questions on Electrical Power and Household Circuits. Revise definitions regularly and use flashcards for quick recall before the exam.
Sources & Official References
Content is aligned to the official syllabus. Refer to the board website for the latest curriculum.
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Important Questions
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Revision Notes
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Formula Sheet
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Chapter Summary
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Study Plan
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Flashcards
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Syllabus
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