Four Charged Particles (Two Having a Charge +Q and Two

question 27

Multiple Choice

Four charged particles (two having a charge +Q and two having a charge -Q) are distributed on the xy-plane,as shown below.Each charge is equidistant from the origin.The voltage is zero at infinity.The amount of work required to move a positively charged particle from point P to point O (which is on the z-axis,below the origin) is

• A)zero.
• B)positive.
• C)negative.
• D)dependent on the path in which the charged is moved.

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Definitions:

Demand Elasticity

A measure of how much the quantity demanded of a good responds to a change in the price of that good, with high elasticity indicating a significant response.

Inelastic Demand

Refers to a situation where the demand for a product does not significantly change with a change in its price.

Elastic Supply

A condition where the quantity supplied of a good changes significantly due to a slight change in its price.

Subsidy

A financial aid or support extended by the government to an economic sector, business, or individual, often aimed at promoting economic and social policies.