Consider the Earth to Have a Uniformly Charged Surface with Density

question 45

Multiple Choice

Consider the Earth to have a uniformly charged surface with density $\sigma$ per unit area.What is the value of $\sigma$ if objects near the surface,carrying charge Q and having mass m,experience no net force?

• A)+ \(\varepsilon\)₀._omg/Q
• B)- \(\varepsilon\)₀._omg/Q
• C)+ 2\(\varepsilon\)₀._omg/Q
• D)-2\(\varepsilon\)₀._omg/Q
• E)Either A or B is correct,depending on the sign of Q.

---

Definitions:

Anesthetizing

The process of administering an anesthetic to temporarily induce a loss of sensation or consciousness.

Childbirth

The process of giving birth to a baby, involving labor and delivery, and marking the end of pregnancy.

Mental Set

A psychological tendency to approach problems in a certain way, often based on past experiences and habits.

Drug's Effects

The physiological and psychological outcomes resulting from the consumption of a pharmaceutical or psychoactive substance.