An electrical shock happens when electric the body at one point and leaves through another.

The correct answer is "current".

Explanation:

The electric shock happens when the circuit is complete with respect to ground. In this case, the electric current enters from one point through the conductor and exits from the another point.

In case of bird sitting on the electrical wire of the electric pole, it does not get electric shock as the circuit is not complete with respect to the ground. That is why the electric current does not flow through its body.

Therefore, an electrical shock happens when electric current enters the body at one point and leaves through another.

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