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JEE Main Electric Charges and Fields — practice questions — page 5

Explore 141 free Electric Charges and Fields questions in JEE Main Physics. Open each question or exercise to read its content, reference answers and available explanation.

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Electric Charges and Fields questions and exercises with answers

Showing questions 121–141 of 141.

Sort the electricity wordsRead the answer and worked solution →Type the numberRead the answer and worked solution →Electrostatics bingoRead the answer and worked solution →A 5 µF capacitor is charged to 200 V. The energy stored in it isRead the answer and worked solution →Electric potential at infinity in the standard syllabus convention is taken asRead the answer and worked solution →The SI unit of capacitance isRead the answer and worked solution →When the separation between the plates of an air parallel-plate capacitor is doubled (keeping plate area constant), the capacitanceRead the answer and worked solution →Match each electrostatic termRead the answer and worked solution →The SI unit of electric potential isRead the answer and worked solution →The potential at a distance 0.30 m from a point charge of +20 nC is (k = 9 × 10⁹ N m² C⁻²)Read the answer and worked solution →Three capacitors of 2 µF each are connected in series. The equivalent capacitance isRead the answer and worked solution →An isolated conducting sphere of radius R carries a charge Q. The electric potential at its centre is (V(∞) = 0)Read the answer and worked solution →Two capacitors of 4 µF and 6 µF are connected in parallel and charged by a 10 V battery. The total charge stored isRead the answer and worked solution →Four equal point charges q sit at the corners of a square of side d. The work needed to assemble this configuration from infinity isRead the answer and worked solution →An electric dipole of moment p is placed in a uniform field E. The work done to rotate it from the orientation θ = 0 (aligned with the field) to θ = 180° isRead the answer and worked solution →Electric field at any point inside a hollow charged conductor isRead the answer and worked solution →On an equipotential surface, the work done in moving a test charge between any two points isRead the answer and worked solution →A parallel-plate capacitor in vacuum has plate area A and separation d. Its capacitance isRead the answer and worked solution →The work done in bringing a charge q from infinity to a point where the potential is V isRead the answer and worked solution →True or false: electrostaticsRead the answer and worked solution →A convex lens forms a real image at $60$ cm on one side of an object placed $20$ cm in front of it. Find the focal length of the lens.Read the answer and worked solution →

Worked practice questions

Sort the electricity words

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Items
  1. Group
    Charge
    Item
    Coulomb
  2. Group
    Charge
    Item
    Quantized
  3. Group
    Charge
    Item
    Conserved
  4. Group
    Force
    Item
    Inverse sq
  5. Group
    Force
    Item
    Superpose
  6. Group
    Force
    Item
    Attraction
  7. Group
    Field
    Item
    Field lines
  8. Group
    Field
    Item
    Dipole
  9. Group
    Field
    Item
    Line density
Groups
  1. Item
    Charge
  2. Item
    Force
  3. Item
    Field
Instructions
Drop each word onto charge, force or field.
_Source: OpenStax University Physics Volume 2, Chapter 5, Electric Charges and Fields._

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Type the number

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Questions
  1. Answer
    2
    Question
    Types of electric charge
  2. Answer
    2
    Question
    Power of distance in the force law denominator
  3. Answer
    0
    Question
    Field lines that may cross at a point
  4. Answer
    2
    Question
    Charges making up a simple dipole
  5. Answer
    0
    Question
    Charge transferred when charging by induction alone
  6. Answer
    0
    Question
    Test charges needed to define the electric field
Instructions
Type the number only.
_Source: OpenStax University Physics Volume 2, Chapter 5, Electric Charges and Fields._

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Electrostatics bingo

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Clues and terms
  1. Clue
    SI unit of charge.
    Item
    Coulomb
  2. Clue
    Whole multiples only.
    Item
    Quantized
  3. Clue
    Falls with distance squared.
    Item
    Inverse square
  4. Clue
    Add the forces up.
    Item
    Superposition
  5. Clue
    Charge cannot escape.
    Item
    Insulator
  6. Clue
    Charged without touching.
    Item
    Induction
  7. Clue
    Electron cloud shifts.
    Item
    Polarization
  8. Clue
    Never cross each other.
    Item
    Field lines
  9. Clue
    Two opposite charges.
    Item
    Dipole
Instructions
Read each clue and tap the term it describes.
_Source: OpenStax University Physics Volume 2, Chapter 5, Electric Charges and Fields._

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