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Sabu

Jun 24, 2014



Sudharsan s

May 7, 2015

#### What is the difference between resistance and resistivity of a conducter? Please Explain?



1.  Resistance of a conductor is the obstruction offered by the conductor in the flow of current throu...

Prateek Jain

Jul 9, 2015

#### I want all the formulas used in chapter electricity



The formulas used in class X are-
1- I,current=Q,charge/T,time
2- V,potential differnce=W,work done/Q,charge
3-V,potential difference=I,cureent*R,resistance
4-Resisitivity=(R,resista...

Jul 22, 2014



Letusknowwhy

Apr 22, 2014

#### State Joules law of heating. Mention SI unit Heat energy.



Joule's law of heating.
The amount of heat produced is  proportion...

Inu

Jul 20, 2013

#### hat are the factors on which the resistance of a conductor depends? what happens to the resistivity of a conductor when its length is doubled?



Factor on which resistance of a conductor depends:
1. Temperature: Resistance increases  in increasing in tem...

R murali

Jun 6, 2014

####  What is the resistance of an ideal voltmeter and ammeter ? how are they connected in a circuit?



Ans:
A voltmeter is used to measure the potential difference across the two points of a circuit. The voltmeter is connected...

Jul 11, 2015

#### Why an ammeter is connected in series while a voltmeter is in parallel?



An ammeter is a low resistance galvanometer. It is used to measure the current in ampere. To measure the current of a circuit, the ammeter is connected in series in the circuit so ...

May 2, 2015

#### Resistivity depends on................?



Resistivity is a measure of the resisting power of a specified material to the flow of an electric curr...

Inu

Aug 3, 2013



Sabu

Jun 24, 2014



Sudharsan s

May 7, 2015

#### What is the difference between resistance and resistivity of a conducter? Please Explain?



1.  Resistance of a conductor is the obstruction offered by the conductor in the flow of current throu...

Prateek Jain

Jul 9, 2015

#### I want all the formulas used in chapter electricity



The formulas used in class X are-
1- I,current=Q,charge/T,time
2- V,potential differnce=W,work done/Q,charge
3-V,potential difference=I,cureent*R,resistance
4-Resisitivity=(R,resista...

Jul 22, 2014



Letusknowwhy

Apr 22, 2014

#### State Joules law of heating. Mention SI unit Heat energy.



Joule's law of heating.
The amount of heat produced is  proportion...

Inu

Jul 20, 2013

#### hat are the factors on which the resistance of a conductor depends? what happens to the resistivity of a conductor when its length is doubled?



Factor on which resistance of a conductor depends:
1. Temperature: Resistance increases  in increasing in tem...

R murali

Jun 6, 2014

####  What is the resistance of an ideal voltmeter and ammeter ? how are they connected in a circuit?



Ans:
A voltmeter is used to measure the potential difference across the two points of a circuit. The voltmeter is connected...

Jul 11, 2015

#### Why an ammeter is connected in series while a voltmeter is in parallel?



An ammeter is a low resistance galvanometer. It is used to measure the current in ampere. To measure the current of a circuit, the ammeter is connected in series in the circuit so ...

May 2, 2015

#### Resistivity depends on................?



Resistivity is a measure of the resisting power of a specified material to the flow of an electric curr...

Inu

Aug 3, 2013