A magnetic field.
yes it does
i don't believe it does
when electric current is passed through acidified water hydrogen gas is released at the cathode..
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when electric current is passed through acidified water hydrogen gas is released at the cathode..
an electric current passed through it
Electrolysis
A magnet that becomes energised when an electric current is passed through it.
No, not all gases are able to glow when an electric current is passed through them. Gases must contain certain atoms or molecules that can emit specific wavelengths of light when energized by the electric current in a process called fluorescence or phosphorescence in order to produce a visible glow.
You generate a (stronger) magnetic field.
When an electric current is passed through xenon gas, it produces a bluish color. This is due to the excitation of the xenon atoms causing them to emit light in the blue part of the spectrum.
When electric current is passed through water, hydrogen gas is produced at the cathode. This is because water molecules (H2O) are split into hydrogen (H2) and oxygen (O2) gases through electrolysis. The hydrogen gas is evolved at the negative electrode, which is the cathode.