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AP Intermediate 2nd Year Moving Charges and Magnetism — practice questions — page 4

Explore 188 free Moving Charges and Magnetism questions in AP Intermediate 2nd Year 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 91–120 of 188.

Order what happens to domainsRead the answer and worked solution →Complete the magnet ruleRead the answer and worked solution →Name the magnetic classRead the answer and worked solution →Spot the odd one outRead the answer and worked solution →Magnetism and matter bingoRead the answer and worked solution →The current sensitivity of a moving coil galvanometer with N turns, coil area A, magnetic field B, spring constant k isRead the answer and worked solution →What the cyclotron frequency ignoresRead the answer and worked solution →A long straight wire carries $5$ A. The magnetic field $0.10$ m away from the wire is:Read the answer and worked solution →Depends on speed or notRead the answer and worked solution →A proton of mass m, charge e, speed v enters a magnetic field B perpendicular to its velocity. The radius of its circular path isRead the answer and worked solution →A rectangular current loop is placed in a uniform magnetic field. The net force on the loop isRead the answer and worked solution →A 0.5 m wire carrying 2 A is placed perpendicular to a 0.4 T magnetic field. The force on the wire isRead the answer and worked solution →At equilibrium, the deflection ϕ of a moving coil galvanometer with N turns, area A, current I, in a radial magnetic field B and spring constant k satisfiesRead the answer and worked solution →A 0.1 m radius loop carries 5 A. The magnetic field at a point on its axis 0.1 m from the centre is approximately (μ₀ = 4π × 10⁻⁷ T·m/A)Read the answer and worked solution →Symbol to quantityRead the answer and worked solution →Currents make fieldsRead the answer and worked solution →Two long parallel wires carry currents in the same direction. They willRead the answer and worked solution →A positive charge moves with velocity $\vec{v}$ PARALLEL to a uniform magnetic field $\vec{B}$. The magnetic force on it isRead the answer and worked solution →The magnetic field at the CENTRE of a circular current loop of radius $R$ carrying current $I$ isRead the answer and worked solution →A current loop of area $A$ carrying current $I$ has a MAGNETIC MOMENT of magnitudeRead the answer and worked solution →A charged particle moves with velocity v parallel to a uniform magnetic field B. The magnetic force on the particle isRead the answer and worked solution →A circular loop of radius R carries current I. The magnitude of the magnetic field at its centre isRead the answer and worked solution →The angular frequency of a particle of charge q and mass m moving in a cyclotron with magnetic field B isRead the answer and worked solution →The magnetic field inside an ideal long solenoid with n turns per unit length carrying current I isRead the answer and worked solution →In a crossed E and B velocity selector, a charged particle of speed v passes undeflected when v equalsRead the answer and worked solution →The magnetic field inside a toroidal solenoid with N total turns, mean radius r, carrying current I isRead the answer and worked solution →The period of revolution of a charged particle moving in a uniform magnetic field perpendicular to its velocity isRead the answer and worked solution →An electron enters a uniform magnetic field B at angle θ to B with speed v. The pitch of its helical path isRead the answer and worked solution →A cyclotron of dee radius R accelerates ions of charge q, mass m in a magnetic field B. The maximum kinetic energy isRead the answer and worked solution →A circular loop of radius R carries current I. The magnetic field at a point on its axis at distance x from the centre isRead the answer and worked solution →

Worked practice questions

Order what happens to domains

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Steps
  1. Domains point at random
  2. A field is applied
  3. Favoured domains grow
  4. Others rotate around
  5. One giant domain forms
Instructions
Tap the steps in the order they happen.
_Source: syllabus Physics, Ch 5 'Magnetism and Matter'_

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Complete the magnet rule

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Missing parts
  1. Answer
    closed
    Choices
    1. closed
    2. open
    3. broken
  2. Answer
    monopoles
    Choices
    1. monopoles
    2. dipoles
    3. domains
Complete the statement
Magnetic field lines form {0} loops, because magnetic {1} do not exist.
Instructions
Drag a word into each gap to finish the sentence.
_Source: syllabus Physics, Ch 5 'Magnetism and Matter'_

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Name the magnetic class

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Questions
  1. Question
    Repelled, with field lines pushed out
    Choices
    1. Diamagnetic
    2. Paramagnetic
    3. Ferromagnetic
    Correct choice
    Diamagnetic
  2. Question
    Weakly magnetised along the applied field
    Choices
    1. Diamagnetic
    2. Paramagnetic
    3. Ferromagnetic
    Correct choice
    Paramagnetic
  3. Question
    Strongly magnetised and built from domains
    Choices
    1. Diamagnetic
    2. Paramagnetic
    3. Ferromagnetic
    Correct choice
    Ferromagnetic
  4. Question
    What a ferromagnet becomes when heated enough
    Choices
    1. Paramagnetic
    2. Diamagnetic
    3. Ferromagnetic
    Correct choice
    Paramagnetic
Instructions
Tap the class of material being described.
_Source: syllabus Physics, Ch 5 'Magnetism and Matter'_

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