1. Rank the bulbs from greatest to smallest according to voltage drop across the

Question

1. Rank the bulbs from greatest to smallest according to voltage drop across the bulb. Explain your reasoning.

2. Is the current through bulb B greater that, less than, or equal to the current through the battery? Explain.

3. Suppose that bulb D is unscrewed, leaving an open circuit.

(a) Will the current through the battery increase, decrease, or remain the same? Explain.

(b) With bulb D unscrewed, is the current through bulb B greater than, less than, or equal to the current through the battery? Explain.

(c) When D is unscrewed, will the brightness of bulb B increase, decrease, or remain the same? Explain your reasoning.

Explanation / Answer

a.The current through battery will increase because the equivalent resistance of the network has decreased (current = voltage/resistance). By

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