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JEE Main Moving Charges and Magnetism — practice questions — page 3

Explore 89 free Moving Charges and Magnetism questions in JEE Main Physics. Open each question or exercise to read its content, reference answers and available explanation.

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Moving Charges and Magnetism questions and exercises with answers

Showing questions 61–89 of 89.

Depends on speed or notRead the answer and worked solution →Symbol to quantityRead the answer and worked solution →Currents make fieldsRead 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 →The cyclotron machineRead the answer and worked solution →Formula to what it describesRead the answer and worked solution →Using Biot-SavartRead the answer and worked solution →Odd one out: magnetismRead the answer and worked solution →Which is largerRead 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 →The Lorentz forceRead the answer and worked solution →Charge in a uniform fieldRead the answer and worked solution →Count and computeRead the answer and worked solution →Field of a circular coilRead the answer and worked solution →The self-inductance of a long air-cored solenoid of length $\ell$, cross-sectional area $A$ and total number of turns $N$ is:Read the answer and worked solution →A $50$-turn coil has a magnetic flux changing through it at a uniform rate of $4 \times 10^{-3}\,\text{Wb/s}$. The induced EMF in the coil is:Read the answer and worked solution →Lenz's law is a direct consequence of:Read the answer and worked solution →The energy stored in an inductor of inductance $L$ carrying a steady current $I$ is:Read the answer and worked solution →An ideal LC circuit oscillates freely. If $L = 4\,\text{mH}$ and $C = 25\,\mu\text{F}$, the angular frequency of oscillation is:Read the answer and worked solution →The Biot-Savart lawRead the answer and worked solution →True of the magnetic forceRead the answer and worked solution →The SI unit Henry (H) is equivalent to:Read the answer and worked solution →Field and force directionsRead the answer and worked solution →A bismuth bar near a strong magnet on the lab table is:Read the answer and worked solution →Work done by a magnetic forceRead the answer and worked solution →

Worked practice questions

Depends on speed or not

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Left
Depends on speed
Items
  1. Item
    Cyclotron freq.
    Answer
    Independent of speed
  2. Item
    Magnetic force
    Answer
    Depends on speed
  3. Item
    Orbit radius
    Answer
    Depends on speed
  4. Item
    qB over 2 pi m
    Answer
    Independent of speed
  5. Item
    v cross B term
    Answer
    Depends on speed
  6. Item
    Charge to mass
    Answer
    Independent of speed
Right
Independent of speed
Instructions
Swipe the card right or left into its group.
_Source: syllabus Physics Part 1, Ch 4 'Moving Charges and Magnetism' (leph104)_

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Symbol to quantity

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Matching pairs
  1. Left
    B
    Right
    Magnetic field
  2. Left
    E
    Right
    Electric field
  3. Left
    I
    Right
    Steady current
Instructions
Tap a symbol, then tap its match.
_Source: syllabus Physics Part 1, Ch 4 'Moving Charges and Magnetism' (leph104)_

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Currents make fields

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Questions
  1. Statement is true
    Yes
    Statement
    A steady current produces a magnetic field.
  2. Statement is true
    Yes
    Statement
    Biot-Savart relates a current element to the field it makes.
  3. Statement is true
    Yes
    Statement
    A circular coil has a field along its axis.
  4. Statement is true
    No
    Statement
    Only permanent magnets can make a magnetic field.
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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