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Electricity/EM Quiz 2 Review

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  • What is the unit for resistance?
    Ohms (Ω)
  • What does this symbol represent?
    cell
  • If the bulb marked X burns out A. the other two bulbs become brighter B. none of the bulbs light C. the other two bulbs become dimmer D. the other two bulbs remain the same
    d
  • The thicker the wire, the ____________ the resistance.
    lower
  • What does 1 represent?
    lightbulb
  • When voltage increases, current will....
    increase
  • Technician A says a change in circuit resistance will change the amount of current in the circuit. Technician B says a change in circuit voltage will change the amount of current in the circuit. Who is right?
    Both
    A only
    B only
    Neither
  • If a circuit has a current of 3 A and a resistance of 5 Ω, how much voltage is applied to the circuit?
    15V
  • Technician A says current is the same everywhere in a series circuit. Technician B says current is the same in each branch of a parallel circuit. Who is right?
    A only
    Both
    B only
    Neither
  • What is the term for the rate of flow of charge around a circuit?
    current
  • A 12-volt circuit has a resistance of 2 ohms. How much current is in the circuit?
    6 amps
  • What is the name given to a material that can conduct electricity?
    conductor
  • What does 3 represent?
    battery
  • True or False. The longer the wire, the higher the resistance.
    True
  • When resistance increases, the current will....
    decrease
  • The voltage in a parallel circuit is the (same/different) everywhere in the circuit
    same
  • When a switch is ________________________, current cannot flow through it.
    open
  • What is the unit for current in a circuit?
    Amps (A)
  • Which light bulb will be the brightest?
    They will all have the same brightness
  • True or False? An ammeter is a device that measures resistance of a circuit.
    False
  • What is the name given to a material which can not conduct electricity?
    insulator
  • In a house, when wiring to ensure if one lightbulb breaks, the others will keep using you should use a ______circuit
    parallel