Two 12 Ω and 6 Ω resistances are connected in parallel. This parallel combination is connected in series with a 9 Ω resistor and then the whole circuit is made parallel with a 12 Ω resistor. If the resulting circuit is again connected in series with a resistance, so that the total resistance will be 25 Ω, find the ohmic value of that resistor.
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.
Two 12 Ω and 6 Ω resistances are connected in parallel. This parallel combination is connected in series with a 9 Ω resistor and then the whole circuit is made parallel with a 12 Ω resistor. If the resulting circuit is again connected in series with a resistance, so that the total resistance will be 25 Ω, find the ohmic value of that resistor.
Step by step
Solved in 2 steps
