A) Conservation of charge, conservation of momentum
B) Conservation of energy, conservation of charge
C) Conservation of momentum, conservation of charge
D) Conservation of charge, conservation of energy
Correct Answer: D
Solution :
| [d] Kirchhoff's 1st law or\[KCL\]states that the algebraic sum of current meeting at any junction is equal to zero. In other words, we can say that" the sum of all the currents directed towards a junction in a circuit is equal to the sum of all the currents directed away from that junction. |
| Thus, no charge has been accumulated at any junction i.e., charge is conserved, and hence we can say that \[KCL(\Sigma i=0)\] is based on conservation of charge. |
| Kirchhoff's 2nd law or KVL states that algebraic sum of potential drops around any closed loop must be zero. |
| In other words, "around any closed loop, voltage drops are equal to voltage rises". No energy is gained or lost in circulating a charge around a loop. Thus, we can say that KVL is based on conservation of energy. |
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