Question

The battery usage of a mobile phone with just 1 application running is 1000mah this means that the mobile phone is drawing current of 100ma in 1 hour from the battery determine the amount of charge(column) flowing through the mobile in 1 hour

Answer 1

Answer:

360 coulomb

Explanation:

1 mAh = 3.6 Coulomb

100 mAh = 360 coulomb

Answer 2

$q=3600\ C$ is the amount of charge drawn by the mobile in 1 hour.

Explanation:

[The phone will consume 1000 mA in one hour not 100 mA in one hour.]

Given:

• power consumption by the phone, $P=1000\ m.A.h$

• time of observation, $t=1\ hr$

The flow of charges through the mobile phone in one hour:

By the definition of current we know that it is the rate of flow of charge.

$i=\frac{q}{t}$

where:

q = amount of charge

So,

$q=i.t$

$q=1\times 3600$ (1000mA=1A & 1 hr=3600 s)

$q=3600\ C$

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TOPIC: rate of flow of charge

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