The circuit below shows three identical light bulbs attached to an ideal battery with emf = 18 V. If the resistance of each bulb is 200 2, what are (a) the current through bulb 1 and (b) the current through bulb 2? (c) If bulb 2 burns out, what happens to the brightness of bulbs 1 and 3? i. The brightness of both bulbs stays the same. Bulbs 1 and 3 get brighter. Bulbs 1 and 3 both get dimmer. Bulbs 1 gets dimmer while bulb 3 gets brighter. Bulbs 1 gets brighter while bulb 3 gets dimmer. i. i. iv. V. Hint: The brightness of a bulb increases as its current increases. Bulb 1 Bulb 2 Bulb 3 +

The circuit below shows three identical light bulbs attached to an ideal battery with emf = 18 V. If the resistance of each bulb is 200 2, what are (a) the current through bulb 1 and (b) the current through bulb 2? (c) If bulb 2 burns out, what happens to the brightness of bulbs 1 and 3? i. The brightness of both bulbs stays the same. Bulbs 1 and 3 get brighter. Bulbs 1 and 3 both get dimmer. Bulbs 1 gets dimmer while bulb 3 gets brighter. Bulbs 1 gets brighter while bulb 3 gets dimmer. i. i. iv. V. Hint: The brightness of a bulb increases as its current increases. Bulb 1 Bulb 2 Bulb 3 +

College Physics

10th Edition

ISBN:9781285737027

Author:Raymond A. Serway, Chris Vuille

Publisher:Raymond A. Serway, Chris Vuille

Chapter18: Direct-Current Circuits

Section: Chapter Questions

Problem 50AP: Three 60.0-W, 120-V lightbulbs are connected across a 120-V power source, as shown in Figure P18.50....

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