Charge Is Distributed Uniformly on the Surface of a Spherical

question 46

Multiple Choice

Charge is distributed uniformly on the surface of a spherical balloon (an insulator) .A point particle with charge q is inside.The electrical force on the particle q is greatest when:

• A)it is just outside the surface of the balloon
• B)it is at the center of the balloon
• C)it is halfway between the balloon center and the inside surface
• D)it is anywhere inside (the force is same everywhere and is not zero)
• E)it is anywhere inside (the force is zero everywhere)

---

Definitions:

Expected Risk Premium

The additional return over the risk-free rate that investors demand to compensate for the risk of holding a risky asset.

Systematic Risk Principle

The concept that an investor can reduce the overall risk of an investment portfolio through diversification, except for inherent market risks that cannot be diversified away.

Efficient Markets Hypothesis

The efficient markets hypothesis is an investment theory that states it is impossible to "beat the market" because stock market efficiency causes existing share prices to always incorporate and reflect all relevant information.

Security Market Line

A representation in finance that shows the relationship between risk and return of a market.