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Chapter 12 and Ohm's Law

Quiz by Kelly Struckhoff

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16 questions
Show answers
  • Q1
    As the voltage in a circuit increases, what happens to the current?
    Increases
    reaches equilibrium
    decreases
    remains the same
    30s
  • Q2
    As the resistance in a circuit increases, what happens to the current?
    reaches equilibrium
    decreases
    remains the same
    increases
    30s
  • Q3
    Current and voltage have a ___________ relationship
    inverse
    direct
    30s
  • Q4
    Resistances and current have a _________ relationship
    inverse
    direct
    30s
  • Q5
    The equaiton for calculating current is_____.
    I = V/R
    V = IR
    R= VI
    R= V/I
    30s
  • Q6
    The equation for calculating Voltage is ______.
    R= V/R
    R=V/I
    V = IR
    I= V/R
    30s
  • Q7
    The equation for calculating resistance is ______.
    R= V/I
    V= RI
    I=V/R
    V=IR
    30s
  • Q8
    A circuit contains a 1.5 volt battery and a bulb with a resistance of 4 ohms. Calculate the current.
    0.375 volts
    6 amps
    6 volts
    0.375 amps
    120s
  • Q9
    A circuit contains two 1.5 volt batteries and a bulb with a resistance of 4 ohms. Calculate the current.
    9 amps
    6 amps
    0.75 amps
    0.5625 amps
    120s
  • Q10
    What is the voltage of a circuit with 15 amps of current and toaster with 8 ohms of resistance?
    1.875 volts
    12 volts
    0.53 volts
    120 volts
    120s
  • Q11
    A light bulb has a resistance of 5 ohms and a current of 2 amps. What is the voltage across the bulb?
    10 volts
    5 volts
    2.5 volts
    0.4 volts
    120s
  • Q12
    How many ohms of resistance must be present in a circuit that has 120 volts and a current of 15 amps?
    0.125 ohms
    15 ohms
    1800 ohms
    8 ohms
    120s
  • Q13
    A protable CD player uses two 1.5 volt batteries. If the current of the CD player is 3 amps, what is the resistance?
    4.5 ohms
    1 ohm
    3 ohms
    9 ohms
    120s
  • Q14
    The unit of measurement for resistance is the
    ohm
    ampere
    volt
    30s
  • Q15
    The unit of measurement for current is the
    volt
    ohm
    ampere
    30s

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