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# Current - Three charged metal spheres of different radii...

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1 1. touching a faulty 110-volt light bulb? 2. touching a Van de Graaff generator charged to 100,000 volts? Which is more dangerous, 1. V 1 = V 2 = V 3 and E 1 = E 2 = E 3 2. V 1 = V 2 = V 3 and E 1 > E 2 > E 3 3. V 1 > V 2 > V 3 and E 1 = E 2 = E 3 4. V 1 > V 2 > V 3 and E 1 > E 2 > E 3 5. V 3 > V 2 > V 1 and E 1 = E 2 = E 3 Three charged, metal spheres of different radii are connected by a thin metal wire. The potential and electric field at the surface of each sphere are V and E . Which of the following is true? Charge flows through a light bulb. Suppose a wire is connected across the bulb as shown. When the wire is connected, 1. all the charge continues to flow through the bulb. 2. half the charge flows through the wire, the other half continues through the bulb. 3. all the charge flows through the wire. 4. none of the above. Two light bulbs A and B are connected in series to a constant voltage source. When a wire is connected across B as shown, bulb B 1. burns more brightly. 2. remains unchanged. 3. burns more dimly. 4. goes out

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2 When the series circuit shown to the right is connected, Bulb A is brighter
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• Spring '08
• Cardenas
• Resistor, Incandescent light bulb, Electrical resistance, Series and parallel circuits, Van de Graaff generator, Bulb

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Current - Three charged metal spheres of different radii...

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