When there is excess demand for a product in a market, a. price must be above the equilibrium price. b. producers will reduce output and sales will fall. c. price must be below the equilibrium price. d. price will tend to fall.

C) Price must be below the equilibrium price

Explanation:

In a perfect competition, price is determined by the industry and no individual consumer or producer can manipulate the price. When something is in equilibrium, it refers to a balanced state with no will to change. In a perfectly competitive market, equilibrium is a point where supply is equal to demand. Market supply is the sum of individual supplies by all producers of the same commodity in the market. Market demand I'd the sum of individual demand by all consumers of a commodity in a market.

  The price at which a market becomes equilibrium is the equilibrium price and the quantity supplied or demanded at the equilibrium price is the equilibrium quantity. When a price is above the equilibrium price, suppliers tend to increase the supply for profits. This could cause a condition of excess supply. In order to sell out the excesses, the price will have to go below the equilibrium price.

  When a price is below the equilibrium price, consumers tend to buy at a reduced price. This causes excess demand. Here, consumers are willing to pay higher to meet the exorbitant demand and thus, the price rises to the equilibrium level.

sound is invisible, but sometimes we can feel it. when a kettle-drum is thumped with a stick that time the tight drum skin moving up and down very quickly for some time and then it pumped sound waves into the air. loudspeakers also work in a similar manner.

components of a speaker:

electromagnet

in order to translate an electrical signal into an audible sound, an electromagnet is used in looudspeakers

  suspension

suspension is used to   center the voice coil in the gap of the magnet and it exerts a restoring force to keep it there. suspension is used to limits the maximum mechanical excursion of the diaphragm and voice coil.

voice coil

voice coil is a coil of wire which is attached to the apex of a loudspeaker cone. it provides the motive force to the cone by the reaction of a magnetic field to the current passing through it.

cone

in a   loudspeaker, a   thin, semi-rigid membrane attached to the voice coil, which moves in a magnetic gap due to which it vibrates   and produced sound. it is known as diaphragm and it can also be called a cone, though not all speaker diaphragms are cone-shaped.

surround

surround is also known as front suspension. surround is used to join the cone to the chassis. together with the suspension it controls the cone excursion, and it is also used to   determine how energy which is   travelling through the cone is absorbed, and how the speaker limits when it reaches the ends of its travel.

dustcap

dustcap is used to protect the voice coil from dust and dirt. it is a part of the cone.

how speaker work

the outer part of the cone is fastened to the outer part of the loudspeaker's circular metal rim. the inner part is fixed to   voice coil that sits just in front of a permanent magnet . when loudspeaker is hooked up to a stereo, electrical signals feed through the speaker cables into the coil. it will convert the coil into an electromagnet magnet . when electricity flows back and forth in the cables, the electromagnet either repels or attract the permanent magnet. this moves the coil back and forth, and it pull and push the loudspeaker cone. like a drum skin vibrating back and forth, the moving cone pumps sounds out into the air.in this way loudspeakers works.

answer; i believe the correct answer is (tall); ///good luck