An mp3 player draws a current of 0.120 ampere from a 3.00-volt battery. what is the total charge that passes through the player in 900. seconds?

The total charge that passes through the player in 900s is Δq = 108C

Explanation:

Charge and current

The concept of electric charge is the fundamental principle to explain all electrical phenomena. Also, the basic quantity in an electrical circuit is the electric charge. All people experience the effect of electric charge when they try to take off a wool sweater and it is stuck to the body or when they go through a carpet and receive an electric shock.

Charge is an electrical property of the atomic particles of which matter is composed, measured in coulombs (C).

Electric current is the rate of change of the load with respect to time,  measure in amperes (A).

Mathematically, the relationship between current i, charge q and time t is:

i = dq/dt

Δq = i Δt

Δq = 0.120A x 900s = 108C

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