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The electrostatic force between two char...

The electrostatic force between two charges `Q_(1) and Q_(2)` at separation r is given by `F= (K.Q_(1)Q_(2))/(r^(2))` The constant K

A

depends on the system of units only

B

depends on the medium between the charges only

C

depends on both the medium between the charges and the system of units

D

is independent of both the system of units and the medium between the charges

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The correct Answer is:
C
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AAKASH SERIES-ELECTRIC CHARGES AND FIELDS-Exercise-I
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  2. A: Charge cannot exist without mass but mass can exist without charge....

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  3. The electrostatic force between two charges Q(1) and Q(2) at separatio...

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  4. The electrostatic force between protons is how many times stronger tha...

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  5. Identify the wrong statement in the following Coulomb.s law correctly ...

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  6. When a brass plate is introduced between two charges, the force betwee...

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  7. A charge q(1) exerts some force on a second charge q(2) If a third cha...

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  8. The angle between the dipole moment and electric field at any point on...

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  9. The Electric field is given by vec( E)= (vec( F))/(q(0)), here the tes...

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  10. The pair of particles which have same acceleration in a uniform electr...

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  11. A simple pendulum has time period T. The bob is given negative charge ...

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  12. A spring-block system undergoes vertical oscillations above a large ho...

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  13. A negatively charged particle is situated on a straight line joining t...

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  14. Two identical pendulums A and B are suspended from the same point. Bot...

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  15. Figure shows lines of force for a system of two point charges. The pos...

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  16. Drawings I and II show two samples of electric field lines

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  17. The acceleration of a charged particle in a uniform electric field is

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  18. An electron enters an electric field with its velocity in the directio...

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  19. A charged bead is capable of sliding freely through a string held vert...

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  20. A positive charge and a negative charge are initially at rest. If same...

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