wizzkids
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2021 HSC Engineering Studies.
Q22 (c)
An electric skateboard battery is rated at 0.078 watts at an operating voltage of 48 volts.
Calculate the capacity of the battery in amp-hours, if it fully discharges in one hour of use. The power (P) is given by the formula P=VI.
COMMENT
What sort of utter nonsense is this?
The current will be a bit over 1.6 milliamps.
The capacity will be a tiny 1.6 milliamp-hours.
Maybe the question was supposed to say 78 watts, or 0.078 kilowatts.
If that was the case, then it would make more sense, the battery capacity would then be slightly more sensible at 1.6 Ah
Q22 (c)
An electric skateboard battery is rated at 0.078 watts at an operating voltage of 48 volts.
Calculate the capacity of the battery in amp-hours, if it fully discharges in one hour of use. The power (P) is given by the formula P=VI.
COMMENT
What sort of utter nonsense is this?
The current will be a bit over 1.6 milliamps.
The capacity will be a tiny 1.6 milliamp-hours.
Maybe the question was supposed to say 78 watts, or 0.078 kilowatts.
If that was the case, then it would make more sense, the battery capacity would then be slightly more sensible at 1.6 Ah
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