Energy transformation In battery : A battery is a device that stores chemical energy and converts it to electrical energy. The chemical reactions in a battery involve the flow of electrons from one material (electrode) to another, through an external circuit. The flow of electrons provides an electric current that can be used to do work.
Energy transformation with in circuit (wire) : The resistance provided by conductor to the free electrons creates collision, from collision of free electrons there is heat generation (in small Quantity) according to formula H = I²Rt,
So with in circuit, electrical energy transform into heat energy.
Energy transformation in incandescent light bulb : when incandescent light bulb is connected to the circuit electrical energy majorly transform into light energy and partially it generates some heat in the form of convection and radiation that's why area above the light bulb is warmer than that of under the light bulb.
Answer: 440 grams for 1.54 is the better value
Explanation:
Take the price and divide by the number of grams
1.54 / 440 =0.0035 per gram
1.26 / 340 =0.003705882 per gram
0.0035 per gram < 0.003705882 per gram
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