Answer:
The question is incomplete, below is the complete question "The electric potential difference between the ground and a cloud in a particular thunderstorm is
. What is the magnitude of the change in the electric potential energy of an electron that moves between the ground and the cloud?"
Answer:

Step-by-step explanation:
data given,
Potential difference,V=3.0*10^9V
charge on an electron, q=1e.
Recall that the relationship between potential difference (v), charge(Q) and the potential energy(U) is expressed as

from the question, we asked to determine potential energy given the charge and the potential difference.
Hence if we substitute values into the equation, we arrive at

Hence the magnitude of the change in the electric potential energy of an electron that moves between the ground and the cloud is
