Answered

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?

(1) 324 C (3) 5.40 C

(2) 108 C (4) 1.80 C

Verified Answer :

The Definition of Electrical Current is given by:

\(i= \frac{\Delta Q}{\Delta t}\)
 
     Entering the unknowns:

\(i= \frac{\Delta Q}{\Delta t} \\ \Delta Q=0.12*900 \\ \boxed {\Delta Q=108C}\)

Number 2

If you notice any mistake in my english, please let me know, because i am not native.

Answer: (2) 108 C

Explanation:

Electric charge of 1 coulomb has said to have passed when a current of 1 Ampere is passed for 1 second.

\(Q=I\times t\)

Q= charge in coloumb = ?

I = current in amperes = 0.120 A

t= time in seconds = 900 sec

\(Q=0.120A\times 900sec=108C\)

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