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When the series circuit shown to the right is connected, Bulb A is brighter than Bulb B. If the positions of the bulbs were reversed, 1. bulb A would again.

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Presentation on theme: "When the series circuit shown to the right is connected, Bulb A is brighter than Bulb B. If the positions of the bulbs were reversed, 1. bulb A would again."— Presentation transcript:

1 When the series circuit shown to the right is connected, Bulb A is brighter than Bulb B. If the positions of the bulbs were reversed, 1. bulb A would again be brighter. 2. bulb B would be brighter. 3. either of the above could occur.

2 When the series circuit shown to the right is connected, Bulb A is brighter than Bulb B. If the positions of the bulbs were reversed,

3 Roll a piece of modeling clay into a cylinder and use an ohmmeter to measure its resistance. Now roll it out again until it's twice as long, and measure the resistance again. Compared with the initial resistance, the new resistance is 1. unchanged.2. twice as much. 3. four times as much.4. eight times as much. 5. actually less.

4 1. Unchanged.2. twice as much. 3. four times as much.4. eight times as much. 5. actually less. Roll a piece of modeling clay into a cylinder and use an ohmmeter to measure its resistance. Now roll it out again until it's twice as long, and measure the resistance again. Compared with the initial resistance, the new resistance is

5 The 40-watt bulb and the 100-watt bulb are connected in series to the battery. Which bulb will glow brighter? watt bulb watt bulb

6 The 40-watt bulb and the 100-watt bulb are connected in series to the battery. Which bulb will glow brighter?

7 Which circuit draws the most current? A B 1. Circuit A 2. Circuit B 3. Both the same

8 Which circuit draws the most current? A B


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