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AP Intermediate 2nd Year Electromagnetic Induction & Alternating Current — practice questions

Explore 116 free Electromagnetic Induction & Alternating Current 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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Electromagnetic Induction & Alternating Current questions and exercises with answers

Showing questions 1–30 of 116.

NEET · Physics · Lenz's Law — EMF SignRead the answer and worked solution →NEET · Physics · AC — RMS vs PeakRead the answer and worked solution →NEET · Physics · AC — Pure R, L or CRead the answer and worked solution →The SI unit of magnetic flux is the:Read the answer and worked solution →The SI unit of inductance is the:Read the answer and worked solution →Induced emf depends on the time rate of change of:Read the answer and worked solution →The emf Blv produced by a moving conductor is called:Read the answer and worked solution →Whose experiments led to modern generators and transformers?Read the answer and worked solution →Lenz's law fixes which feature of the induced emf?Read the answer and worked solution →Moving a magnet towards a coil induces in the coil an:Read the answer and worked solution →The induced current opposes the change that produced it, because:Read the answer and worked solution →Because the induced current opposes the motion, the mover must:Read the answer and worked solution →The constant linking flux linkage to current is called:Read the answer and worked solution →Inductance depends only on the coil's geometry and its:Read the answer and worked solution →The constant M linking two neighbouring coils is called:Read the answer and worked solution →The constant L for a single coil is called its:Read the answer and worked solution →Mutual inductance is also called the coefficient of:Read the answer and worked solution →An alternative name for the SI unit of magnetic flux is:Read the answer and worked solution →If the induced current did not oppose the change, one could get:Read the answer and worked solution →A galvanometer connected to a coil shows deflection only when:Read the answer and worked solution →Flux through a coil can be changed without moving it, by changing:Read the answer and worked solution →The negative sign in Faraday's law expresses which law?Read the answer and worked solution →Match the induction termRead the answer and worked solution →True or false about inductionRead the answer and worked solution →Self or mutual inductance?Read the answer and worked solution →Order the induction chainRead the answer and worked solution →Complete the induction lawsRead the answer and worked solution →Name the induction quantityRead the answer and worked solution →Spot the odd one outRead the answer and worked solution →Induction bingoRead the answer and worked solution →

Worked practice questions

NEET · Physics · Lenz's Law — EMF Sign

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Items
  1. Item
    Magnet pushed into coil
    Answer
    left
  2. Item
    Magnet held stationary in coil
    Answer
    right
  3. Item
    Magnet pulled out of coil
    Answer
    left
  4. Item
    Coil rotated in magnetic field
    Answer
    left
  5. Item
    Coil stationary in steady field
    Answer
    right
  6. Item
    Loop moved through field
    Answer
    left
Categories
Left
Induced EMF opposes motion
Right
No EMF induced
Instructions
When does Lenz's law produce an opposing EMF?

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NEET · Physics · AC — RMS vs Peak

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Matching pairs
  1. Left
    RMS voltage of 220V supply
    Right
    ≈ 220 V
  2. Left
    Peak voltage of 220V supply
    Right
    ≈ 311 V
  3. Left
    RMS = peak / √2
    Right
    Sinusoidal AC
Instructions
Match each AC quantity to its value or condition.

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NEET · Physics · AC — Pure R, L or C

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Items
  1. Item
    Pure resistive circuit
    Answer
    left
  2. Item
    Pure inductive circuit
    Answer
    right
  3. Item
    Pure capacitive circuit
    Answer
    right
  4. Item
    Power dissipated = V_rms × I_rms
    Answer
    left
  5. Item
    Voltage leads current by 90° (inductor)
    Answer
    right
  6. Item
    Current leads voltage by 90° (capacitor)
    Answer
    right
Categories
Left
Current in phase with V (pure R)
Right
Current and V are π/2 out of phase (pure L or C)
Instructions
Sort each AC behaviour: pure resistive or pure reactive?

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