The electric energy stored in a 3-V battery whose capacity is2 Ah is: Please exp
ID: 1734410 • Letter: T
Question
The electric energy stored in a 3-V battery whose capacity is2 Ah is: Please explain in detail The voltage needed to produce a current of 8 A in a resistanceof 12 ohms is: Please explain in detail A 3 kg pine board is 20 cm wide, 2 cm thick and 2 mlong. The density of the board is: Please explain in detail The electric energy stored in a 3-V battery whose capacity is2 Ah is: Please explain in detail The voltage needed to produce a current of 8 A in a resistanceof 12 ohms is: Please explain in detail A 3 kg pine board is 20 cm wide, 2 cm thick and 2 mlong. The density of the board is: Please explain in detailExplanation / Answer
(b) the voltage needed to produce a current 8A of 12 is from the ohms law = v = i R = 8*12 = 96 volts (c) mass of pine board = m = 3kg volume of pine board = v =length* wide*thick = 2*0.2*0.02 = 0.008m3 density of board = d = mass/ volume = 3/0.008 = 375 kg/m3 (a) elecrical energy stored U = 1/2 q v = 1/2 *2 *3 = 3 J (a) elecrical energy stored U = 1/2 q v = 1/2 *2 *3 = 3 JRelated Questions
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