Question

Describe a simple experiment to show that the total charge on a pair of objectd, that have been rubbed together, is zero​

Answer 1

Answer:

An electrically charged object can attract objects that are uncharged. Consider the following figure -

When a glass rod is rubbed against a silk cloth, then glass object acquires positive charge and silk cloth acquired negative charge. The amount of charge acquired by both the object must be equal, so that the net charge of the system is zero. This is so because, according to the law of conservation of charges, charge can neither be created nor can it be destroyed

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Answer 2

Answer:

ᴀɴ ᴇʟᴇᴄᴛʀɪᴄᴀʟʟʏ ᴄʜᴀʀɢᴇᴅ ᴏʙᴊᴇᴄᴛ ᴄᴀɴ ᴀᴛᴛʀᴀᴄᴛ ᴏʙᴊᴇᴄᴛs ᴛʜᴀᴛ ᴀʀᴇ ᴜɴᴄʜᴀʀɢᴇᴅ. ᴄᴏɴsɪᴅᴇʀ ᴛʜᴇ ғᴏʟʟᴏᴡɪɴɢ ғɪɢᴜʀᴇ -

ᴡʜᴇɴ ᴀ ɢʟᴀss ʀᴏᴅ ɪs ʀᴜʙʙᴇᴅ ᴀɢᴀɪɴsᴛ ᴀ sɪʟᴋ ᴄʟᴏᴛʜ, ᴛʜᴇɴ ɢʟᴀss ᴏʙᴊᴇᴄᴛ ᴀᴄǫᴜɪʀᴇs ᴘᴏsɪᴛɪᴠᴇ ᴄʜᴀʀɢᴇ ᴀɴᴅ sɪʟᴋ ᴄʟᴏᴛʜ ᴀᴄǫᴜɪʀᴇᴅ ɴᴇɢᴀᴛɪᴠᴇ ᴄʜᴀʀɢᴇ. ᴛʜᴇ ᴀᴍᴏᴜɴᴛ ᴏғ ᴄʜᴀʀɢᴇ ᴀᴄǫᴜɪʀᴇᴅ ʙʏ ʙᴏᴛʜ ᴛʜᴇ ᴏʙᴊᴇᴄᴛ ᴍᴜsᴛ ʙᴇ ᴇǫᴜᴀʟ, sᴏ ᴛʜᴀᴛ ᴛʜᴇ ɴᴇᴛ ᴄʜᴀʀɢᴇ ᴏғ ᴛʜᴇ sʏsᴛᴇᴍ ɪs ᴢᴇʀᴏ. ᴛʜɪs ɪs sᴏ ʙᴇᴄᴀᴜsᴇ, ᴀᴄᴄᴏʀᴅɪɴɢ ᴛᴏ ᴛʜᴇ ʟᴀᴡ ᴏғ ᴄᴏɴsᴇʀᴠᴀᴛɪᴏɴ ᴏғ ᴄʜᴀʀɢᴇs, ᴄʜᴀʀɢᴇ ᴄᴀɴ ɴᴇɪᴛʜᴇʀ ʙᴇ ᴄʀᴇᴀᴛᴇᴅ ɴᴏʀ ᴄᴀɴ ɪᴛ ʙᴇ ᴅᴇsᴛʀᴏʏᴇᴅ