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An atom is usually electrically neutral ...

An atom is usually electrically neutral because_____
equal number of electron proton `square`
equal number of neutron electron `square`
equal number of neutron proton `square`
none of these `square`

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JNAN PUBLICATION-PHYSICAL ENVIRONMENT (FORCES ACTIVE WITHOUT CONTACT)-EXAMPLE
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  2. Mass of proton is 9.11 xx 10-^28gm square 1.675xx 10^-24gmsquare ...

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  3. An atom is usually electrically neutral because equal number of ele...

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  4. Metals are good conductor of electricity because metals have large nu...

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  5. Two types of charges were named by

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  6. If electron increases in a body then it would be

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  7. It is safe to do electrical work standing on a wooden stool because it...

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  8. Which particle revolves around the centre of atom

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  9. A semi conductor material is silicon square glass square copper squ...

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  13. State whether True or False : Similar charges attracts each other.

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  14. State whether True or False : CGS unit of force is Dyne.

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  15. State whether True or False : The force with which sun attracts an o...

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  16. State whether True or False : The force with which earth attracts an...

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  17. State whether True or False : If dry hair is combed static electrici...

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  18. State whether True or False : The negative charged particle of atom ...

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  19. State whether True or False : The positive charged particle of atom ...

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  20. State whether True or False : CGS unit of force is Newton.

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