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Physics
Physics
Problem
3. Calculate the electrical energy consumed, in kWh, when a
1500
W
1500\,\text{W}
1500
W
immersion heater is used for
20
min
20\,\text{min}
20
min
. a)
0.75
0.75
0.75
b)
0.50
0.50
0.50
c)
0.30
0.30
0.30
d)
3.0
3.0
3.0
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