6. Electricity and Magnetism
Electric Charge — Quiz
Test your understanding of electric charge with 5 practice questions.
Practice Questions
Question 1
A neutral object is brought near a charged object. If the neutral object is then temporarily grounded while the charged object remains nearby, and the ground connection is removed before the charged object, what will be the final charge on the initially neutral object?
Question 2
Consider three identical conducting spheres: Sphere A has a charge of $+6 \text{ C}$, Sphere B has a charge of $-2 \text{ C}$, and Sphere C is neutral. If Sphere A is touched to Sphere B, then separated, and then Sphere B is touched to Sphere C, what is the final charge on Sphere C?
Question 3
A student rubs a balloon on their hair, causing the balloon to become negatively charged. They then bring the charged balloon near a small, uncharged piece of paper without touching it. Which of the following best describes the immediate effect on the paper?
Question 4
An object has a net charge of $-9.6 \times 10^{-19} \text{ C}$. Given that the elementary charge is approximately $1.6 \times 10^{-19} \text{ C}$, how many excess electrons does this object possess?
Question 5
Two identical, uncharged metal spheres, P and Q, are placed on insulating stands and are in contact. A positively charged rod is brought near sphere P (without touching it). While the rod is still in place, sphere Q is moved away from sphere P. Finally, the charged rod is removed. What are the final charges on spheres P and Q, respectively?