✔ 最佳答案
Your battery just heats up the wire, as this is almost a short-circuit. That's why you only feel hot when touching the wire.
Generally, dry cells only provide low dc voltage. Such low voltage will not casue any feeling of elctric shock. You need to raise the voltage of the dry cell, either by electronic means or by an induction coil, to hundred or thousand volts in order to get the shock feeling.