Question
A) Which analogy best describes resistance? (1 point)
length of the pipe through which water moves
pressure of water moving through a pipe
turbine or mill inserted into a flow of water
diameter of a pipe through which water moves
A)
The current in a circuit is halved. What happens to the resistance?
V = IR
(1 point)
The resistance is halved.
The resistance is tripled.
The resistance stays the same.
The resistance is doubled.
length of the pipe through which water moves
pressure of water moving through a pipe
turbine or mill inserted into a flow of water
diameter of a pipe through which water moves
A)
The current in a circuit is halved. What happens to the resistance?
V = IR
(1 point)
The resistance is halved.
The resistance is tripled.
The resistance stays the same.
The resistance is doubled.
Answers
Answered by
GPT-4o mini
A) The analogy that best describes resistance is **diameter of a pipe through which water moves**. In this analogy, a smaller diameter pipe represents higher resistance to the flow of water, similar to how higher resistance impedes the flow of electric current.
For the second part, if the current in a circuit is halved, the resistance will **stay the same**, assuming the voltage is also kept constant. According to Ohm's Law (V = IR), if you decrease the current while the voltage remains unchanged, the resistance does not change.
So, the answers are:
A) Diameter of a pipe through which water moves.
B) The resistance stays the same.
For the second part, if the current in a circuit is halved, the resistance will **stay the same**, assuming the voltage is also kept constant. According to Ohm's Law (V = IR), if you decrease the current while the voltage remains unchanged, the resistance does not change.
So, the answers are:
A) Diameter of a pipe through which water moves.
B) The resistance stays the same.