17. elaine connects an ammeter to a lamp, which is connected to a battery. she records the current. she connects another battery in series to the circuit and records the ammeter reading again. she repeats this step two more times.
a) which variable is elaine not changing?
b) which variable is elaine changing?
c) which variable is elaine studying?
d) what do you expect elaine's readings to show?
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17. elaine connects an ammeter to a lamp, which is connected to a battery. she records the current....
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