Direct current is the unidirectional flow of an electric charge.
The term 'unidirectional' in the statement means that direct current only moves in one direction. Direct current usually produced by things such as batteries, dynamos, and power supplies
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For the elements with the electron affinities given in the table in the introduction, which element is most likely to accept an electron?
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Elements which have only 1 or 2 vacant electrons, would accept electron easily. Example.- Halogen accepts electron very easily due to high E.A.
What happens to the mass of an object when it is cooled?
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Nothing. The mass doesn't change.
In the Balmer series, how many spectral lines have the wavelength greater than 400 nm?
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The Balmer series or Balmer lines in atomic physics, is the designation of one of a set of six named series describing the spectral line emissions of the hydrogen atom. The Balmer series is calculated using the Balmer formula, an empirical equation discovered by Johann Balmer in 1885. this is all I know sorry
You are given two solid materials one that is organic and one that is not organic. Describe three tests you could perform to help you decide which is which.
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1- which one expires faster. 2- wbich one has more health benefits. 3- and which one tastes better which is the organic.
1)why do we get electric shock while holding a live wire barefooted and not when wearing rubber shoes?
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Electricity is always going to take the path of least resistance to ground. The rubber in your shoes is not a conductor of electricity, therefore you are not completing the circuit and you don't get shocked. Your bare feet, on the other hand ARE conductors of electricity, so when you hold the wire, you complete the circuit and become the path of least resistance to ground... ZAP!