Joseph Henry in about 1835. He is American and he made something called a relay.
Yes true
hey is this one of your questions on a science packet if so it is called explore ring Earth's surface because I have the same packet with the same question on it
Answer:
Both
Explanation:
Batteries come in different sizes and configurations. This is evident in car batteries where third sizes vary from car to car depending on the space and manufacturer's discretion.
Thus, Both technicians are correct.
Cheers
So, you can be able to make a prediction and understand the cycle.