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Electric charge of 1 muC, -1 muC and 2 m...

Electric charge of `1 muC, -1 muC` and `2 muC` are placed in air at the corners A, B and C respectively of an equilateral triangle ABC having length of each side 10 cm. The resultant force on the charge at C is

A

`0.9 N`

B

`1.8 N`

C

`2.7 N`

D

`3.6 N`

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The correct Answer is:
B
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AAKASH SERIES-APPENDICES ( REVISION EXERCISE )-REVISION EXERCISE (MAGNETISM AND MATTER )
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  8. The distance between a north pole of strength 6 xx 10^(-3)Am and a sou...

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  9. Two north poles each of pole strength m and a south pole of pole stren...

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  10. The magnetic induction at a distance 'd' from the magnetic pole of unk...

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  11. The force between two short magnets is 'F'. When the pole strengths of...

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  12. The poles of a horse-shoe magnet cach of pole strength 2A-m are at 4cm...

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  13. Two poles of a horse shoe magnet each of pole strength 2 Am are 8 cm a...

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  14. The length of a magnet of moment 5A m^2 is 14cm. The magnetic inductio...

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  15. A magnet of length 10cm and magnetic moment 1 Am^2 is placed along the...

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  16. Two identical magnetic poles each of strength 'm' are placed at the ve...

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  17. The pole strength of a 12cm long bar magnet is 20Am. The magnetic indu...

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  18. Two short bar magnets of magnetic moments m each are arranged at the o...

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  19. The pole strength of a 12cm long bar magnet is 20Am. The magnetic indu...

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  20. Two short magnets each of moment M are placed one over the other at ri...

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  21. A short bar magnet of magnetic movement 5.25xx10^(-2)J T^(-1) is plac...

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