Question
Asked Mar 5, 2019
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13) A ΔV = 2.7 V battery loses E = 6 J of energy each day (t = 24 hrs) powering a cell phone.

a) Input an expression for the average current, I, supplied to the phone.

b) What is the current in Amperes?

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Expert Answer

Step 1

13)

 

(a)

 

The expression for charge is given by,

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Step 2

The expression for the energy transferred is given by,

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Step 3

Thus, the expression for average current ...

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