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Letusknowwhy

Apr 25, 2014

Describe domestic electric circuits.

This answer has an image. Please click on the question to read more.

Answer (2)

Letusknowwhy

May 2, 2014

Why is the pin connected to the earth wire is thicker and longer than the pins connected to neutral and live wire in a plug?

Why is the pin connected to the earth wire is thicker and longer than the pins connected to neutral and live wire in a plug?

Answer: The pin connected to the earth wire i...

Answer (1)

Apoorva

Jan 2, 2014

Water in an electric kettle connected to a 220V supply took 5 minutes to reach its boiling point. How long would it have taken if the supply voltage had fallen to 200V.

This answer has an image. Please click on the question to read more.

Answer (1)

Letusknowwhy

Apr 29, 2014

Why is the filament of a bulb made of tungsten?

Answer.
Because it is an alloy.Alloys do not oxidise OR burn easily compared to metals like copper.Hence the filament will not get burnt up quickly and we dont have to keep changing it frequently.

Answer (2)

Letusknowwhy

Apr 29, 2014

How does the fuse wire protect electric circuit?

This answer has an image. Please click on the question to read more.

Answer (1)

Sudha eto

Jan 22, 2015

What is the cause of heating effect of electricity?

Heating effect of electricity is one of the widely used effects in the world. When electric current is passed through a condu...

Answer (1)

Letusknowwhy

Apr 25, 2014

What are the safety measures to be taken in electric circuits and appliances?

What are the safety measures to be taken in electric circuits and appliances?
 
Answer: 
a) Avoid confusion by following colour coding.
b...

Answer (1)

Letusknowwhy

Apr 29, 2014

fuse wire is connected with the live wire just after the electric meter of the consumer.Why?

it is done so the ilectricity will not harm us

Answer (1)

Letusknowwhy

May 2, 2014

What are the safety measures to be taken in electric circuits and appliances?

What are the safety measures to be taken in electric circuits and appliances? 
Answer:  
a) Avoid confusion by following colour coding.
b) The metallic body ...

Answer (1)

Uttam mazumder

Oct 7, 2014

1.What is the purpose of argon in the electric bulb?
2. Write out the differences between the radations emitted from  a tungsten filament and anichrome filament?Which one is hotter.

Please post each question separately to get quick and proper answer.

Answer (1)

Letusknowwhy

Apr 25, 2014

Describe domestic electric circuits.

This answer has an image. Please click on the question to read more.

Answer (2)

Letusknowwhy

May 2, 2014

Why is the pin connected to the earth wire is thicker and longer than the pins connected to neutral and live wire in a plug?

Why is the pin connected to the earth wire is thicker and longer than the pins connected to neutral and live wire in a plug?

Answer: The pin connected to the earth wire i...

Answer (1)

Apoorva

Jan 2, 2014

Water in an electric kettle connected to a 220V supply took 5 minutes to reach its boiling point. How long would it have taken if the supply voltage had fallen to 200V.

This answer has an image. Please click on the question to read more.

Answer (1)

Letusknowwhy

Apr 29, 2014

Why is the filament of a bulb made of tungsten?

Answer.
Because it is an alloy.Alloys do not oxidise OR burn easily compared to metals like copper.Hence the filament will not get burnt up quickly and we dont have to keep changing it frequently.

Answer (2)

Letusknowwhy

Apr 29, 2014

How does the fuse wire protect electric circuit?

This answer has an image. Please click on the question to read more.

Answer (1)

Sudha eto

Jan 22, 2015

What is the cause of heating effect of electricity?

Heating effect of electricity is one of the widely used effects in the world. When electric current is passed through a condu...

Answer (1)

Letusknowwhy

Apr 25, 2014

What are the safety measures to be taken in electric circuits and appliances?

What are the safety measures to be taken in electric circuits and appliances?
 
Answer: 
a) Avoid confusion by following colour coding.
b...

Answer (1)

Letusknowwhy

Apr 29, 2014

fuse wire is connected with the live wire just after the electric meter of the consumer.Why?

it is done so the ilectricity will not harm us

Answer (1)

Letusknowwhy

May 2, 2014

What are the safety measures to be taken in electric circuits and appliances?

What are the safety measures to be taken in electric circuits and appliances? 
Answer:  
a) Avoid confusion by following colour coding.
b) The metallic body ...

Answer (1)

Uttam mazumder

Oct 7, 2014

1.What is the purpose of argon in the electric bulb?
2. Write out the differences between the radations emitted from  a tungsten filament and anichrome filament?Which one is hotter.

Please post each question separately to get quick and proper answer.

Answer (1)

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