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Two charges 3 xx 10^(-5)C and 5 xx 10^4 ...

Two charges `3 xx 10^(-5)C and 5 xx 10^4 C` are placed at a distance of 10 cm from each other. Find the value of electrostatic force acting between

A

`13.5 xx 10^11 N`

B

`3 xx 10^11N`

C

`18 xx10^9N`

D

`13.5 xx 10^10 N`

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PUNJAB BOARD PREVIOUS YEAR PAPERS-QUESTION PAPER 2021-MULTIPLE CHOICE QUESTION
  1. Name the physical quantity, whose SI unit is newton coulomb^-1

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  2. The dimensions of electric permittivity are :

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  3. Two charges 3 xx 10^(-5)C and 5 xx 10^4 C are placed at a distance of...

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  4. The electric potential at the surface of an atomic nucleus (Z=50) of r...

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  5. On what factors the capacitance of a capacitor depends?

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  6. Which of the following characterstics of electrons determines the curr...

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  7. 12 Coulomb/minute can be written as:

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  8. In a current carrying conductor the ratio of the electric field and e...

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  9. When a wire is stretched and its radius becomes (r )/(2) then its res...

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  10. In charging a battery of a motor car, which effect of electric current...

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  11. Resistivity of a wire depends upon the :

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  12. Magnitude of the magnetic intensity of a point due to a current in a ...

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  13. Magnetism in substances is caused by:

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  14. The resistance of an ideal ammeter is

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  15. Calculate the value of resistance needed to coavert a galvanometer of ...

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  16. Magnetic meridian is a

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  17. The magnetic moment (mu) of a revovlign electron around the nucleus va...

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  18. Is there a magnetic force exerted by a magnetic field on a stationary ...

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  19. Gauss is a unit of :

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  20. A solenoid has 1000 turns per meter length. If a current of 5 A is flo...

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