Delmar's Standard Textbook Of Electricity
7th Edition
ISBN:9781337900348
Author:Stephen L. Herman
Publisher:Stephen L. Herman
Chapter2: Electrical Quantities And Ohm’s Law
Section: Chapter Questions
Problem 2RQ: What is an ampere?
Related questions
Question
The potentiometer initially has a value of 500 ohms. It is later changed to 750 ohms. Which of the following is true?
a. The power consumed by the resistor remains the same regardless of changing the value of the resistance.
b. Current passing through the circuit increases with the resistance.
c. Voltage across the resistance remains the same because the voltage in the source did not change.
d. Current through the voltage source varies with the resistance.
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