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What are the two kinds of charges?
Chapter: [8.1] Electricity
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What is the net charge on an atom?
Chapter: [8.1] Electricity
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How many electrons are present in Na+? The atomic number of Na is 11.
Chapter: [8.1] Electricity
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Distinguish between an atom and an ion.
Chapter: [8.1] Electricity
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What causes the electrification of two bodies when they are rubbed together?
Chapter: [8.1] Electricity
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The lighting and the thunder are produced simultaneously, but the sound of the thunder is heard a few seconds after the lightning is seen. Why?
Chapter: [8.1] Electricity
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What is the purpose of an electroscope?
Chapter: [8.1] Electricity
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A positively charged rod is brought near the cap of a positively charged gold leaf electroscope. State your observation and give a reason.
Chapter: [8.1] Electricity
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Write symbol and state function of the following component in an electric circuit :
battery
Chapter: [8.1] Electricity
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Write two differences between the primary and secondary cells.
Chapter: [8.1] Electricity
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What is the SI unit of current?
Chapter: [8.1] Electricity
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What is the other name of a variable resistor?
Chapter: [8.1] Electricity
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What is the difference between a cell and a battery?
Chapter: [8.1] Electricity
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What is the function of a switch in an electric circuit?
Chapter: [8.1] Electricity
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Is current a scalar or a vector quantity?
Chapter: [8.1] Electricity
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What is the other name for a variable resistor?
Chapter: [8.1] Electricity
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Name two sources of current.
Chapter: [8.1] Electricity
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Label the different parts A, B, C, D, E, and F. State the functions of each part. Show in the diagram the direction of flow of current.
Chapter: [8.1] Electricity
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Is voltmeter same as voltameter?
Chapter: [8.1] Electricity
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How is an ammeter connected in a circuit?
Chapter: [8.1] Electricity
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