Electricity: Static Electricity
Static Electricity: Audio Guided Solution
Problem 6:
Mr. H gives two large vinyl balloons ten good rubs on what's left of his hair, transferring a total of 2.1x1012 electrons from his hair to each balloon. He walks away, leaving the balloons to be held by strings from a single pivot point on the ceiling. The balloons repel and reach an equilibrium position with a separation distance of 58 cm.
a. Determine the quantity of charge on each balloon.
b. Determine the Coulomb force of repulsion between the two balloons.
a. Determine the quantity of charge on each balloon.
b. Determine the Coulomb force of repulsion between the two balloons.
Audio Guided Solution
Habits of an Effective Problem Solver
- Read the problem carefully and develop a mental picture of the physical situation. If necessary, sketch a simple diagram of the physical situation to help you visualize it.
- Identify the known and unknown quantities; record them in an organized manner. A diagram is a great place to record such information. Equate given values to the symbols used to represent the corresponding quantity - e.g., Q1 = 2.4 μC; Q2 = 3.8 μC; d = 1.8 m; Felect = ???.
- Use physics formulas and conceptual reasoning to plot a strategy for solving for the unknown quantity.
- Identify the appropriate formula(s) to use.
- Perform substitutions and algebraic manipulations in order to solve for the unknown quantity.
Read About It!
Get more information on the topic of Static Electricity at The Physics Classroom Tutorial.
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