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Rajasthan Board Class 12 (RBSE) Magnetism and Matter — practice questions

Explore 24 free Magnetism and Matter questions in Rajasthan Board Class 12 (RBSE) Physics. Open each question or exercise to read its content, reference answers and available explanation.

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Magnetism and Matter questions and exercises with answers

Showing questions 1–24 of 24.

A bismuth bar near a strong magnet on the lab table is:Read the answer and worked solution →The Lorentz forceRead the answer and worked solution →Work done by a magnetic forceRead the answer and worked solution →Reading the Lorentz forceRead the answer and worked solution →Force on a current wireRead the answer and worked solution →The current carrying conductorRead the answer and worked solution →Charge in a uniform fieldRead the answer and worked solution →What the cyclotron frequency ignoresRead the answer and worked solution →The cyclotron machineRead the answer and worked solution →Formula to what it describesRead the answer and worked solution →The Biot-Savart lawRead the answer and worked solution →Using Biot-SavartRead the answer and worked solution →Field of a circular coilRead the answer and worked solution →Odd one out: magnetismRead the answer and worked solution →Depends on speed or notRead the answer and worked solution →True of the magnetic forceRead the answer and worked solution →Symbol to quantityRead the answer and worked solution →Which is largerRead the answer and worked solution →Field and force directionsRead the answer and worked solution →Currents make fieldsRead the answer and worked solution →Count and computeRead the answer and worked solution →Odd one out: what a current doesRead the answer and worked solution →Zero work, changing directionRead the answer and worked solution →Moving charges, mixed checkRead the answer and worked solution →

Worked practice questions

A bismuth bar near a strong magnet on the lab table is:

  1. Weakly repelled, since bismuth is a diamagnetic substance
  2. Strongly attracted, similar to iron on the bench
  3. Unaffected entirely, since bismuth has no magnetic response
  4. Weakly attracted, since all metals respond to a magnet
Show answer and solution

Correct answer: A. Weakly repelled, since bismuth is a diamagnetic substance

Bismuth is diamagnetic, hence weakly repelled.

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The Lorentz force

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Missing parts
  1. Answer
    Lorentz
    Choices
    1. Lorentz
    2. Coulomb
    3. Ampere
  2. Answer
    normal
    Choices
    1. normal
    2. parallel
    3. opposite
Complete the statement
F = q(v cross B + E) is called the {0} force, and the magnetic part is {1} to v.
Instructions
Tap a chip from the bank to fill each blank.
_Source: syllabus Physics Part 1, Ch 4 'Moving Charges and Magnetism' (leph104)_

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Work done by a magnetic force

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Questions
  1. Statement is true
    Yes
    Statement
    The magnetic force q(v cross B) is normal to v.
  2. Statement is true
    Yes
    Statement
    The work done by the magnetic force is zero.
  3. Statement is true
    No
    Statement
    A magnetic force can change a particle's speed.
  4. Statement is true
    Yes
    Statement
    The Lorentz force includes both electric and magnetic parts.
Instructions
Tap True or False for each statement.
_Source: syllabus Physics Part 1, Ch 4 'Moving Charges and Magnetism' (leph104)_

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More Physics topics

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