Transistors

The first step in understanding transistors is to review some basic facts about electricity. Opposites attract and likes repel. This activity will help you understand the nature of that electrostatic interaction.

Visit [|this link], and click Run Now!
 * See if you can score a goal using
 * only one positive charge;
 * only one negative charge;
 * exactly two positive charges;
 * exactly two negative charges
 * exactly one positive charge and one negative charge.
 * Then try adding many charges and/or adding walls to navigate around!
 * What does this exercise tell you about electrostatic forces?
 * What do you think will happen in this situation?

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But when you move charge from one object to another, which of the opposites moves?