Mahesh Godavarti
1
A person or living thing experiences a shock only when electric current passes through their body. For this to happen the person or living thing needs to simultaneously touch two points that have what is called a potential difference. Once that happens current flows from higher potential to a lower potential through the body and the person or living thing experiences a shock. A good analogy would be to imagine a body as a tube through which water can flow. A water will only flow through the tube if the tube connects two points at different heights. If a tube connects two points at the same height the water will not flow through it. Similarly, a bird sitting on a wire is essentially a tube connecting two points at the same height. For a bird to get electrocuted it needs to simultaneously sit on two different wires. At the instant, it will immediately get electrocuted.