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

Respuesta :

     The Definition of Electrical Current is given by:

[tex]i= \frac{\Delta Q}{\Delta t}[/tex]
 
     Entering the unknowns:

[tex]i= \frac{\Delta Q}{\Delta t} \\ \Delta Q=0.12*900 \\ \boxed {\Delta Q=108C}[/tex]

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.

[tex]Q=I\times t[/tex]

Q= charge in coloumb = ?

I = current in amperes = 0.120 A

t= time in seconds = 900 sec

[tex]Q=0.120A\times 900sec=108C[/tex]