Five Equal Negative Charges Are Uniformly Spaced in a Semicircular

question 40

Multiple Choice

Five equal negative charges are uniformly spaced in a semicircular arc of radius r₀ with its center at the origin.The charges positions in polar coordinates are given by (r₀,θ​_i) ,where the values of θ​_i are 0°,45°,90°,135°,and 180°.At the position (x,y) = (r₀,-r₀) in the 4th quadrant,which statement best describes the direction of the resulting electric field?

• A)The direction is that of a 4th quadrant angle.
• B)The direction is that of a 3rd quadrant angle.
• C)The direction is that of a 1st quadrant angle.
• D)The direction is that of a 2nd quadrant angle.

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Definitions:

Income Elasticity

A measure of how much the demand for a good or service changes with a change in consumers' income.

Most Elastic

Refers to the responsiveness of demand or supply to changes in price, with the most elastic being the most sensitive to price changes.

Perfectly Elastic

A situation in a market where the quantity demanded or supplied responds infinitely or disproportionately to changes in price.

Cross Elasticity

A measure of how the quantity demanded of one good or service changes in response to a change in the price of another good or service.