A smart phone Lithium Ion (Li-ion) battery has a capacity of 1200 mAh. The battery can be used for 4.5 hours t

October 25, 2009 by admin · 1 Comment
Filed under: Mathematics 
smart phone
manifela asked:


A smart phone Lithium Ion (Li-ion) battery has a capacity of 1200 mAh. The battery can be used for 4.5 hours talktime, or for 10 days on standby. Approximately how much current does the smart phone draw (i) during ‘talktime’ (rounded to the nearest whole number) and (ii) when on standby?

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A ’smart phone’ Lithium Ion (Li-ion) battery?

October 18, 2009 by admin · 1 Comment
Filed under: Other - Electronics 
smart phone
PCworld asked:


A ‘smart phone’ Lithium Ion (Li-ion) battery has a capacity of 1200 mAh.The battery can be used for 4.5 hours ‘talktime’, or for 10 days on standby.
Approximately how much current does the ‘smart phone’ draw (1) during ‘talktime’ (rounded to the nearest whole number) and (2) when on standby?
Choose two options, one from rows A-D and one from rows E-H,
(1) Current drawn during ‘talktime’
A: 156 mA
B: 267 mA
C: 375 mA
D: 654 mA
(2) Current drawn when on standby
E: 0.75 mA
F: 5 mA
G: 7 mA
H: 25 mA

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A ‘smart phone’ Lithium Ion (Li-ion) battery has a capacity of 1200 mAh?

October 17, 2009 by admin · 1 Comment
Filed under: Software 
smart phone
bud1658 asked:


A ‘smart phone’ Lithium Ion (Li-ion) battery has a capacity of 1200 mAh.
The battery can be used for 4.5 hours ‘talktime’, or for 10 days on standby.
Approximately how much current does the ‘smart phone’ draw (i) during
‘talktime’ (rounded to the nearest whole number) and (ii) when on standby?
Choose two options, one from rows A–D and one from rows E–H, and
mark the appropriate cells in row 8.
(i) Current drawn during ‘talktime’ (ii) Current drawn when on standby
A 156 mA E 0.75 mA
B 267 mA F 5 mA
C 375 mA G 7 mA
D 654 mA H 25 mA

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