Question

Asked Nov 17, 2019

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A mobile phone battery has a capacity of 10 Ah. If the mobile phone requires 10 mW power to run smoothly, estimate how long will the phone run without charging? Assume the battery is fully charged.

Step 1

If *R* ohm corresponds to the load of the mobile phone during smooth run and *i(t)* A is the corresponding current, then the power requirement by the mobile phone during smooth run can be expressed as

Step 2

In this present case, the power requirement for smooth run is given as

Step 3

Equating equation (1) and (2), the current required f...

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