Author Question: When voltage is stepped up in a transformer, current is stepped down. But Ohm's law tells us that ... (Read 194 times)

pepyto · **on:** Jul 29, 2018

When voltage is stepped up in a transformer, current is stepped down. But Ohm's law tells us that greater voltage means greater current, not less current. How then can current be lower when voltage is increased?

A) Current in the secondary is lower when compared to the greater current drawn by the primary.
B) Ohm's law applies to the circuit connected to the secondary, not to the transformer.
C) both of these
D) neither of these

Question 2

High-voltage wires in power lines are not high-current wires because the current in them is

A) not the same as the current that powers the distant load.
B) proportional to the voltage drop from beginning to end of each line, rather low.
C) both of these
D) neither of these