Switch R1=40 0 R3= 30 2 60 03 E= 12 V R2 C = 2 µF = V1, V2, V3, and 1, I2, I3apply to the respective resisters. Vc and Q refer to the capacitor's voltage and charge. Uc refers to the capacitor's stored energy (electric potential energy). The remaining circuit quantities may change instantaneously as required by Kirchhoff's rules. Calculate l, in amps immediately after the switch (t = 0+), in that order. (All currents in this and the following two should be positive.)
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.
The remaining circuit quantities may change instantaneously as required by Kirchhoff's rules. Calculate I1 in amps immediately after the switch ( t = 0 + ), in that order. (All currents in this and the following two should be positive.)
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