Please select a subject first
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What is the heating effect of electric current?
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Which metal is used to make the filament of an electric bulb?
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What is a short circuit?
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What is the potential difference?
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How much is the potential difference between live and neutral wires?
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What is overloading?
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What is used to turn off the sudden increase in current in the electrical circuit of the house nowadays?
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Write two devices based on the heating effect of electric current.
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Write the name.
Conversion of ice into liquid due to applied pressure and the reconverts to ice once the pressure is removed.
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The modern periodic table has 1 to 7 periods.
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The modern periodic table shows the molecular masses of the elements in each frame.
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p-block is composed of groups 1 and 2.
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To the left of the zig-zag line in the periodic table are the metal elements.
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The K and L shells of the elements Na and Mg contain electrons.
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Live wire and neutral wires have a 220 V potential difference.
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Increasing the current passing through the wire decreases the magnetic field intensity.
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Write an Explanation.
Period
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Write scientific reason.
There was ambiguity about the correct position of hydrogen in Mendeleev’s periodic table.
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Write scientific reason.
Lithium and sodium are included in the same group in periodic table.
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