# physics lab 1332953 2

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} m^{2}?

**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?