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Unformatted text preview: then your voltage drop is +iR volts Negative voltage drops: (a) If you go through an EMF source from  to + terminal, then your voltage drop is (E) volts (b) If you go through resistor R in the direction opposite to the current, then your voltage drop is (iR) volts Voltage drop across a resistor is measured by a voltmeter voltmeter is connected IN PARALLEL to the resistor Voltmeter should not draw any significant current from the resistor voltmeter must have a HUGE RESISTANCE Current through resistor is measured by an ammeter connect the ammeter IN SERIES with the resistor Ammeter should not modify the current flowing through the resistor ammeter must have a TINY RESISTANCE Energy balance: calculate (a) energy of the capacitor U E and (b) work done by the battery W B Energy balance: calculate (a) energy of the capacitor U E and (b) work done by the battery W B...
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 Spring '08
 Turner
 Current, Power

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