If a customer separately arranges and pays for delivery of a taxable item by a third party, the seller of the item will only collect sales tax on its charge (see Delivery-only services, below).f the product or service being sold is not taxable, any charge to the customer for shipping or delivery is also not taxable. This also applies when the customer gives the seller a valid resale certificate or other exemption document.
1 Definition: The anode of a device is the terminal where current flows in from outside. The cathode of a device is the terminal where current flows out. This is illustrated in figure 1.  A useful mnemonic is ACID : Anode Current Into Device.
The copper electrode is therefore the cathode. Both cathode and anode are types of electrodes. Actually electrodes are dipped in chemical solution (electrolyte). One electrode which is given positive charge is called anode while electrode with negative charge is called cathode.