Explain your reasoning in short concise sentences. a. Why can't we just heat a wire to produce a current? b. Two copper wires of different diameter are joined end-to-end. If a current flows in the wire combination, what happens to electrons when they move from the larger-diameter wire into the smaller-diameter wire? Does their drift speed increase, decrease, or stay the same? If the drift speed changes, what is the force that causes the change and why the change? Explain your reasoning? c. Explain the following statement: you are relatively safe inside a metal car during a thunderstorm-you may get cooked, if lightning strikes, but you will not be electrocuted.
Explain your reasoning in short concise sentences. a. Why can't we just heat a wire to produce a current? b. Two copper wires of different diameter are joined end-to-end. If a current flows in the wire combination, what happens to electrons when they move from the larger-diameter wire into the smaller-diameter wire? Does their drift speed increase, decrease, or stay the same? If the drift speed changes, what is the force that causes the change and why the change? Explain your reasoning? c. Explain the following statement: you are relatively safe inside a metal car during a thunderstorm-you may get cooked, if lightning strikes, but you will not be electrocuted.
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