Think and Explain 1. Why is it important that the resistance of an extension cord be small when it is used to power an electric heater? 2. Will the current on a light bulb connected to 220V be more or less than when the same light bulb is connected to 110V? How much? 3. In 60- Hz alternating current, how many times per second does the electron change its direction? (Don't say 60) 4. Would you expect to find DC or AC in the dome lamp in an automobile? In the lamp in your home? Please help on these questions I would appreciate it very much THANKS!!