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Electrostatics Physics - Electrostatics

Bihar Board (BSEB) - STD 12 Science - Physics (BSEB - English Medium). 56 questions in this chapter.

Question types

Electrostatics question types

56 questions across 5 question groups — pick any mix to generate a Physics paper with step-by-step answer keys.

56
Questions
5
Question groups
5
Question types
Sample Questions

Electrostatics questions

One sample from each question group in this chapter. Select any group above to see the full set with answer keys.

Q 2M.C.Q [1M]1 Mark
The relation between electric field (E) and electric potential (V) is :
  • ✓
    $E=-(\frac{dV}{dr})$
  • B
    $E=-(\frac{dr}{dV})$
  • C
    $E=(\frac{dV}{dr})$
  • D
    $E=(\frac{dr}{dV})$

Answer: A.

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Q 3M.C.Q [1M]1 Mark
The electrostatic energy of the system made by two electric dipoles kept at a distance 'r' is proportional to :
  • A
    $r^{2}$
  • ✓
    $r^{-3}$
  • C
    $r^{4}$
  • D
    None of these

Answer: B.

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Q 5M.C.Q [1M]1 Mark
On moving from the surface of a charged metallic sphere to the centre of the sphere, the electric field :
  • A
    decreases
  • B
    increases
  • C
    remains same as at the surface
  • ✓
    zero at all places

Answer: D.

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Q 17Long Answer Type Questions [5M]5 Marks
Define capacitance of a capacitor. Derive expression for stored energy between plates of parallel plate capacitor. Show that energy-density between plates of parallel capacitor can be expressed as $\frac{1}{2}\in_{0}E^{2}$ , when E = Electric Field between plates.
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