Current Electricity Exe-9C Short Ans Concise Physics ICSE Class 9 Selina Publishers

Current Electricity Exe-9C Short Ans Concise Physics ICSE Class 9 Selina Publishers. Answer of Short Question Type based on Effiecient Uses of Energy. Visit official Website CISCE for detail information about ICSE Board Class-9.

Current Electricity Exe-9C Short Ans Concise Physics ICSE Class 9 Selina Publishers

Current Electricity Exe-9C Short Ans Concise Physics ICSE Class 9 Selina Publishers

Board ICSE
Class 9
Subject Physics
Writer / Publication Concise Selina Publishers
Chapter-9 Current Electricity
Exe-9C Effiecient Uses of Energy
Topics Solution of Short Answer Question
Academic Session 2024-2025

Effiecient Uses of Energy

SHORT ANSWER TYPE: Current Electricity Exe-9C Short Ans Concise Physics ICSE Class 9 Selina Publishers

Question-1: State two ways to save energy.

Answer-.

1). To save the most energy, switch off the power point rather than leave appliances on standby.

2).Turn off your heater, cooling units and appliances when you go to bed or leave the house.

Question-2: How does proper insulation of home save energy ?

Answer-By properly insulating a home, it is possible to maintain a comfortable temperature inside. It will reduce the cost of heating devices in winter and cooling devices in summer.

Question-3: How is CFL better than a usual bulb?

Answer- CFL (Compact fluorescent lamp) produces very less amount of heat energy and thus reduces the energy wastage. That’s why CFL are more eco-friendly.

Question-4: What is indicated by the different number of stars on an electric appliance ?

Answer- number of stars on an electric appliance indicate how energy efficient they are. More stars on an electric appliance, more energy efficient. less star means less energy efficient.

-: end of Current Electricity Exe-9C Short Ans Concise Physics ICSE Class 9 Selina Publishers :-

Return to:-  Concise Selina Physics ICSE Class-9 Solutions

Thanks

Leave a Comment

This site uses Akismet to reduce spam. Learn how your comment data is processed.