Answer:
Current (I) is different from voltage (V).
Current is how much electron is moving through the wire every seconds. You can see it in the unit for current, Amperes, which is C/s (amount of electron in Coulumbs per second).
Voltage is like the amount of energy that the electron contains. You can see it in the unit for voltage, Volts, which is J/C (the amount of enegery, Joules, per unit of electrons in Coublumbs).
You can think of current as how many runners run across a hurdle in a hurdle race every second. This relates to how many electron move across a point per second.
Then you can think of voltage as how high the runners can jump. This relates to how much energy each runner has, or how much each electron has. If you don't have enough voltage, you can't jump over the hurdle to get to the other side.
At a high enough voltage, anything can become conductive including air and wood. Lightning is just air becoming conductive because the voltage is high enough to jump from the sky to ground.
