This is physics. Need help with questions 4 and 5 thanks

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secondary 3 E Maths Singapore

This is physics. Need help with questions 4 and 5 thanks

Date Posted: 3 years ago

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Have not touched this in a long time...not sure if my formulas are right..

4) Q=it E=Pt=(iV)t=QV
V=E/Q
=10J/2.5C
=4V

5)Q=it=(2A)(40s)= 80C

5b)E=QV= (80C)(6V) = 480J

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Date Posted: 3 years ago

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