Physics Lab
The following questions ask you to solve problems involving topics we’ve covered this week. Work each problem on paper, and post a scanned image of your work for each question, along with a brief description of how you solved the problem. Your scanned work should include a step-by-step solution to the problem. By Friday, September 26, 2014, scan and post your work to the W6 Assignment 2 Lab Dropbox.
Review the work posted by at least two other students, and post your comments on the appropriateness of their work by the end of the week.
Question 1
Aluminum has a resistivity of 2.7*10-8 Ωm. What would be the resistance of 100 m of aluminum wire with a cross-sectional area of 2*10-4 m2?
Question 2
A 10 ohm resistor and a 20 ohm resistor are connected in parallel. What is the equivalent resistance of this setup?
Question 3
A 4 ohm resistor and 10 ohm resistor are connected in series. If this circuit is connected to a 12 V battery, how much current will flow through the circuit?
Question 4
A 30 ohm resistor is connected to a 1.5 V battery. How much power is dissipated by the resistor?
Question 5
Two point charges, each 6*10-5 C, are separated by 30 cm. What is the electrostatic force produced by this arrangement?
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