Four Wires Meet at a Junction

question 72

Multiple Choice

Four wires meet at a junction.The first carries 4 A into the junction, the second carries 5 A out of the junction, and the third carries 2 A out of the junction.The fourth carries:

• A)7 A out of the junction
• B)7 A into the junction
• C)3 A out of the junction
• D)3 A into the junction
• E)1 A into the junction

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Definitions:

Demand

The desire of consumers, backed by the ability and readiness to purchase, for specific goods or services at a given time.

Downward-Sloping

A graphical representation indicating a decrease or decline in value or quantity when plotted against another variable, often used in economics to describe demand curves.

Demand Curve

A graphical representation showing the relationship between the price of a good and the quantity of that good consumers are willing and able to purchase at each price.

Constant

A value or parameter that does not change in a given context, often used as a reference in scientific and mathematical formulations.