Electrostatics

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Question 1

Coulomb's Law gives the force between:

  • Two masses

  • Two charges

  • Two currents

  • Two electric fields

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Question 2

The unit of electric charge is:

  • Ampere

  • Volt

  • Coulomb

  • Tesla

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Question 3

The electric field at a point due to a positive charge is:

  • Radially inward

  • Radially outward

  • Zero everywhere

  • Circular

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Question 4

The electric potential at a point is defined as:

  • The force per unit charge

  • The energy per unit charge

  • The charge per unit energy

  • The energy per unit mass

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Question 5

The potential energy of a system of two point charges is:

  • Always positive

  • Always negative

  • Positive if the charges have the same sign, negative if they have opposite signs

  • Independent of the charges’ positions

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Question 6

The electric field inside a conductor in electrostatic equilibrium is:

  • Zero

  • Maximum

  • Constant

  • Varies with distance

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Question 7

The electric flux through a surface is defined as:

  • The electric field times the charge enclosed

  • The electric field multiplied by the area perpendicular to the field

  • The charge on the surface

  • The potential difference across the surface

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Question 8

The electric flux through a surface is defined as:

  • The electric field times the charge enclosed

  • The electric field multiplied by the area perpendicular to the field

  • The charge on the surface

  • The potential difference across the surface

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Question 9

If the distance between two charges is doubled, the electrostatic force between them becomes:

  • Half

  • One-quarter

  • Double

  • Four times

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Question 10

A capacitor is charged with a potential difference of 10 V. If the capacitance of the capacitor is 2 μF, the charge on the capacitor is:

  • 10 μC

  • 20 μC

  • 2 μC

  • 5 μC

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Tags:
Physics

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