Law of Conservation of Charge Explained... Electrification

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00:00If you rub a glass rod with a piece of cloth, the electrons on the glass rod will be transferred to the cloth.

00:06At this time, the glass rod will be positively charged and the cloth will be negatively charged.

00:13This is frictional electrification.

00:15If you put the glass rod in contact with another electrically neutral glass rod,

00:20the electrons will move to the positively charged glass rod and neutralization will occur.

00:27This is contact electrification.

00:30If you put the positively charged glass rod close to a metal rod, even if there is no contact,

00:36the negative charge of the metal rod will move to the end close to the glass rod,

00:41while the end far away will be positively charged.

00:45If the glass rod is negatively charged, the end of the metal rod close to the glass rod will be positively charged

00:52and the end far away will be negatively charged.

00:55We call this phenomenon electrostatic induction.

00:59Next, connect the negatively charged end of the metal rod to the ground.

01:04The negative charge will flow to the ground, making the metal rod positively charged as a whole.

01:10Note that in the above process, only the distribution of charge changes.

01:15The total amount of charge remains unchanged during the transfer process

01:19and all follow the law of conservation of charge.

01:22Like and follow for more informative videos.

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