2. In the circuit below e1=30V, VR2=5V and e2=15V. Find the voltages VR2 and VR3. VR + R i1 i3 - + L1 R2 VR2 L2 R3 VR

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Q: solve for current across circuit RI R2 R3 200L 2k2 1502 VI E24 V R485002 R5 { 3002 V2 12 V Loop 2

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Q: For the circuit shown 1. V1 = VS1 = 2. V2 = VS2 = +1V

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KVL and KCL

KVL stands for Kirchhoff voltage law. KVL states that the total voltage drops around the loop in any closed electric circuit is equal to the sum of total voltage drop in the same closed loop.

Sign Convention

Science and technology incorporate some ideas and techniques of their own to understand a system skilfully and easily. These techniques are called conventions. For example: Sign conventions of mirrors are used to understand the phenomenon of reflection and refraction in an easier way.