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WBJEE Electrostatics — practice questions — page 3

Explore 68 free Electrostatics questions in WBJEE Physics. Open each question or exercise to read its content, reference answers and available explanation.

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Electrostatics questions and exercises with answers

Showing questions 61–68 of 68.

Flip and pair: symbol with meaningRead the answer and worked solution →Spot the one that does not belongRead the answer and worked solution →Mobile chargesRead the answer and worked solution →True or false: fields and forcesRead the answer and worked solution →Assertion and reason: fieldsRead the answer and worked solution →Vector or scalar?Read the answer and worked solution →Complete the conservation statementRead the answer and worked solution →Tap every property your syllabus lists for electric chargeRead the answer and worked solution →

Worked practice questions

Flip and pair: symbol with meaning

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Matching pairs
  1. A
    q
    B
    electric charge
  2. A
    e
    B
    the basic quantum of charge
  3. A
    E
    B
    electric field
  4. A
    k
    B
    1/(4πε₀)
  5. A
    ε₀
    B
    permittivity of free space
  6. A
    r̂
    B
    a unit vector
The notation of the chapter. Source: syllabus Physics Part I, Ch 1 Electric Charges and Fields.

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Spot the one that does not belong

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Questions
  1. Items
    1. Quantisation
    2. Superposition
    3. Additivity
    4. Conservation
    Odd item
    Superposition
  2. Items
    1. Rubber
    2. Metal
    3. Electrolyte
    Odd item
    Rubber
  3. Items
    1. Newton
    2. Coulomb
    3. Volt
    Odd item
    Coulomb
  4. Items
    1. Field line direction
    2. Field line spacing
    3. Field line colour
    Odd item
    Field line colour
Each group is one summary point. Source: syllabus Physics Part I, Ch 1 Electric Charges and Fields.

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Mobile charges

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Questions
  1. Question
    In a metal, the mobile charges are
    Choices
    1. electrons
    2. protons
    3. positive ions
    Correct choice
    electrons
  2. Question
    In an electrolyte, the mobile charges are
    Choices
    1. electrons only
    2. both positive and negative ions
    3. neutrons
    Correct choice
    both positive and negative ions
  3. Question
    An insulator
    Choices
    1. conducts charge freely
    2. has no charge
    3. blocks charge movement
    Correct choice
    blocks charge movement
Which particles actually move depends on the material. Source: syllabus Physics Part I, Ch 1 Electric Charges and Fields.

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