Is seed can be used to restore bitcoin from my electrum wallet even I will use other's PC?
Just as a side note, you shouldn't restore your wallet on someone else's PC. You have no idea if their PC is infected with malware or keyloggers and even if you delete the wallet file afterwards, there is a chance they could recover it using data recovery programs.
Restore should only be used when you actually need to restore your wallet because you've got a new PC or your hard drive died etc... You should never use it to setup a copy of your wallet so you can access your coins when you're away from home etc.
If you need access to some of your funds while you are away from home, you should consider getting a hardware wallet like a trezor or a ledger nano-s or possibly keeping a small amount of coins in a wallet on your mobile or something.