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Current Electricity
The Kirchhoff’s first law (∑ i= 0) and second law (∑iR = ∑E), where the symbols have their usual meanings, are respectively based on
conservation of charge, conservation of energy
conservation of charge, conservation of momentum
conservation of energy, conservation of charge
conservation of momentum, conservation of charge
A.
conservation of charge, conservation of energy
Kirchhoff's Ist law or KCl states that the algebraic sum of current meeting at any junction is equal to zero. Thus, no charge has been accumulated at any junction i.e., the charge is conserved, and hence KCl is based on conservation of charge.
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What conclusion can you draw from the following observations on a resistor made of alloy manganin?
|
Current A |
Voltage V |
Current A |
Voltage V |
|
0.2 0.4 0.6 0.8 1.0 2.0 |
3.94 7.87 11.8 15.7 19.7 39.4 |
3.0 4.0 5.0 6.0 7.0 8.0 |
59.2 78.8 98.6 118.5 138.2 158.0 |
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