Question

If charge enclosed in gaussian surface is zero then:
(1) Electric field on the surface must be zero 2) Incoming and outgoing electric field lines are equal
(3) Electric field on the surface must be uniform
4)All of these​

Answer 1

Answer:

(1) ᴇʟᴇᴄᴛʀɪᴄ ғɪᴇʟᴅ ᴏɴ ᴛʜᴇ sᴜʀғᴀᴄᴇ ᴍᴜsᴛ ʙᴇ ᴢᴇʀᴏ.

Explanation:

ɪᴛ ɪs ɴᴏᴛ ɴᴇᴄᴇssᴀʀʏ ᴛʜᴀᴛ ᴇʟᴇᴄᴛʀɪᴄ ғɪᴇʟᴅ sʜᴏᴜʟᴅ ʙᴇ ᴢᴇʀᴏ ʙᴇᴄᴀᴜsᴇ ɪғ ɴᴇᴛ ᴄʜᴀʀɢᴇ ɪs ᴢᴇʀᴏ. ᴛʜᴇɴ ᴛʜᴇʀᴇ ᴍᴀʏ ʙᴇ ᴘᴏssɪʙɪʟɪᴛʏ ᴛʜᴀᴛ ᴏɴʟʏ ᴅᴏᴛ ᴘʀᴏᴅᴜᴄᴛ ᴏғ ᴇ ᴀɴᴅ ᴀ ᴡɪʟʟ ʙᴇ ᴢᴇʀᴏ. ᴛʜᴀᴛ ᴅᴏᴇsɴ'ᴛ ᴍᴇᴀɴ ᴛʜᴀᴛ ᴇʟᴇᴄᴛʀɪᴄ ғɪᴇʟᴅ ᴡɪʟʟ ʙᴇ ᴢᴇʀᴏ.