I Wish to Use a Positively Charged Rod to Charge

question 18

Multiple Choice

I wish to use a positively charged rod to charge a ball by induction. Which statement is correct?

• A) The ball is charged as the area of contact between the two increases.
• B) The ball must be a conductor.
• C) The ball must be an insulator that is connected temporarily to the ground.
• D) The charge on the ball will be positive.

---

Definitions:

Two-tail Test

A statistical test used to determine whether there is a significant difference between a sample and a population mean in either direction.

Sample Variances

A measure of the spread or dispersion of a set of sample data points.

Test Statistic

A value calculated from sample data during a hypothesis test used to determine whether to reject the null hypothesis.

F-distribution

The F-distribution is a probability distribution that arises in the analysis of variances for comparing the variances of two or more samples.