From the movement of sunspots, Galileo discovered that sun rotate s on its own axis.
Explanation:
All the sunspots are traveling across the Sun's head. This movement is part of the Sun's general rotation of its axis. Observations also suggest that the Sun does not rotate like a solid body, but rotates differently because it is a gas. Actually the Sun is spinning faster at its equator than at at its poles. The Sun rotates once every 24 days at its equator, but only once every 35 days at its poles. We learn this by observing the movement of sunspots and other solar features pass through the Sun.
The current is defined as the amount of charge transferred through a certain point in a certain time interval: where I is the current Q is the charge is the time interval
For the lightning bolt in our problem, Q=6.0 C and , so the average current during the event is
is the time interval
, so the average current during the event is