AP Physics C 2017

(Marvins-Underground-K-12) #1

Free Response:


6 .

(a)         Simplify    the above   circuit so  that    it  consists    of  one equivalent  resistor    and the battery.
(b) What is the total current through this circuit?
(c) Find the voltage across each resistor. Record your answers in the spaces below.
Voltage across 200 Ω resistor: ______
Voltage across 300 Ω resistor: ______
Voltage across 400 Ω resistor: ______
Voltage across 500 Ω resistor: ______
(d) Find the current through each resistor. Record your answers in the spaces below.
Current through 200 Ω resistor: ______
Current through 300 Ω resistor: ______
Current through 400 Ω resistor: ______
Current through 500 Ω resistor: ______
(e) The 500 Ω resistor is now removed from the circuit. State whether the current through the 200 Ω
resistor would increase, decrease, or remain the same. Justify your answer.

Solutions to Practice Problems


1   .   A   —On one hand,   you could   use a   V   -I  -R chart    to  calculate   the voltage or  current for each    resistor,
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