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Three charges each of +4mu C are the cor...

Three charges each of `+4mu C` are the corners B, C, D of a square ABCD of side 1m. The electric field at the centre .O. of the square is

A

`7.2 xx 10^(4) N//C` towards A

B

`7.2 xx 10^(4) N//C` towards C

C

`3.6 xx 10^(4) N//C` towards A

D

`3.6 xx 10^(4) N//C` towards C

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A
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AAKASH SERIES-ELECTRIC CHARGES AND FIELDS-Practice Exercise
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  2. Two equal and opposite charges of magnitude 0.2 mu C are 15 cm apart, ...

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  3. Three charges each of +4mu C are the corners B, C, D of a square ABCD ...

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  5. The electrons in a particle beam each have a kinetic energy of 1.6 xx ...

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  6. Two charged particles having masses in the ratio 2: 3 and charges in t...

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  7. ABC is an equilateral triangle. Three identical charges each +q are pl...

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  8. An alpha particle is situated in an electric field of 10^(6)N//C. The ...

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  9. Four charges of +q, -q, +q and +q are placed at the corners A, B, C an...

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  10. The electric intesnity due to a dipole of length 10cm and having a cha...

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  11. An electric dipole consisting of two opposite charges 2 xx 10^(-6)C ea...

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  12. A molecule with a dipole moment p is placed in electric field of stren...

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  13. An electric dipole of moment P is placed in the position of stable equ...

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  14. For a dipole q= 2 xx 10^(-6)C and d= 0.01m. Calculate the maximum torq...

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  15. An electric dipole of moment vec(p) is placed normal to the lines of f...

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  16. A dipole consisting of +10 nC and -10 nC separated by a distance of 2c...

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  17. The number of electric lines of force originating from a charge of 1C ...

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  18. A cube of side 1 is placed in a uniform field E, where E= E hat(i). Th...

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  19. A point charge +q is placed at the centre of a cube of side L. The ele...

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  20. A long thin flat sheet has a uniform surface charge density sigma. The...

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