Homework, 8 General Physics

# Homework, 8 General Physics - General Physics II Homework 8...

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General Physics II Homework 8 Worked Examples Giancoli: 19.10, 19.28, 19.31, 19.32, 19.50, 19.57, 19.71 10. Connecting 3 n of the resistors in series, where n is an integer, will enable you to make a voltage divider with a 4.0 V output. 28. There are three currents involved, and so there must be three independent equations to determine those three currents. One comes from Kirchhoff’s junction rule applied to the junction of the three branches on the left of the circuit. Another equation comes from Kirchhoff’s loop rule applied to the outer loop, starting at the lower left corner, and progressing counterclockwise. The final equation comes from Kirchhoff’s loop rule applied to the bottom loop, starting at the lower left corner, and progressing counterclockwise. Substitute into the top loop equation, so that there are two equations with two unknowns. Solve the bottom loop equation for and substitute into the top loop equation, resulting in an equation with only one unknown, which can be solved.

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• Spring '14
• Pantelidas
• Physics, Work, Resistor, Electrical resistance, loop equation

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