The power consumed by the light bulb is 20 watts.
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[Ques. 2] The resistance of the light bulb is 20 ohms.
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[Ques. 3] A light bulb designed for use with AC would still work if hooked up to DC of the proper voltage.
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[Ques. 4] In a parallel circuit, the size of the current flowing through each device may be different.
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[Ques. 5] If an electric toaster operating on 120 volts draws a current of 6 amperes, the resistance of the toaster is 20 ohms.
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[Ques. 6] A battery stores electric charge in the same way that a bottle stores water.
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[Ques. 7] A battery operating a large flashlight produces a current of 2 amperes in a light bulb that has a resistance of 4 ohms. The voltage of the battery is 2 volts.
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[Ques. 8] If the current drawn from a 12 volt car battery is 100 amperes when it is short circuited with a wire, the resistance of the wire is 0.12 ohms.
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[Ques. 9] An electrostatic precipitator uses an electric field to remove smoke from the air.
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[Ques. 10] Semiconductor technology has been the basis for many new electronic devices.
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