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  • name the factors which affect resistance on a wire
    length of wire, cross-sectional area, type of material
  • what is a neutral atom?
    atom with equal number of protons and electrons
  • what is an ammeter?
    a device used to measure current
  • how is a voltmeter connected to a circuit?
    it is connected across the component to be measured
  • describe the image
    like charges repel, unlike charges attract
  • In paint spraying, which object is positively charged, which is negatively charged?
    positively charged - object to be painted, negatively charged = paint
  • name the symbol
    transistor
  • how is the ammeter connected to the circuit
    it is connected in series
  • Describe the charge of the picture.
    it is positively charged
  • name the symbol
    LED
  • name the symbol
    variable resistor
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