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Electromagnetism: Magnetic fields, solenoids, and flux rules

Stella Mendes 7 questions

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Questions in this quiz (7)

  1. 1Electromagnetism is a phenomenon that occurs when a [blank_start]current[blank_end] flows through a wire, creating a [blank_start]magnetic field[blank_end] around it.
    1. Acurrent
    2. Bmagnetic field
  2. 2What is a solenoid?
    1. AA coiled piece of wire which turns into an electromagnet when current flows through it
    2. BA coiled piece of wire used to increase the size of a magnetic field
    3. CAnother name for a 'step-down transformer'
    4. DA device used to induce a magnetic field in a coil of wire
  3. 3How can the strength of a solenoid's magnetic field be increased? (Check all that apply)
    1. AIncrease the magnetic field lines
    2. BIncrease current
    3. CIncrease voltage
    4. DIncrease turns of coil
    5. EDecrease current
    6. FWrap it around a magnetically soft core
    7. GWrap it around a magnetically hard core
  4. 4The further apart the magnetic flux lines, the stronger the magnetic force field
    1. ATrue
    2. BFalse
  5. 5Magnetic flux lines move in a N to S direction.
    1. ATrue
    2. BFalse
  6. 6Which of the following experiments could be used to demonstrate the statement: The magnetic field is stronger closer to the poles.
    1. AThe statement is not true.
    2. BMove the magnet into coiled wire to induce a current.
    3. CDrop iron fillings onto the magnet - the largest concentration of fillings with gather at the pole, where the field is strongest.
    4. DDrop copper fillings onto the magnet.
  7. 7When a [blank_start]current-carrying wire[blank_end] is placed in the uniform [blank_start]magnetic field[blank_end] of a magnet, the magnetic fields will [blank_start]overlap[blank_end] and the wire will [blank_start]kick[blank_end] up or down as a result of this. If the current is [blank_start]reversed[blank_end], the wire will kick in the opposite direction.
    1. Acurrent-carrying wire
    2. Bmagnetic field
    3. Coverlap
    4. Dkick
    5. Ereversed

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Description
GCSE Physics Quiz on Untitled, created by Stella Mendes on 01/12/2016.
Language
English
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1
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physicsgcse
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