) Two resistors, when connected in series, have a total resistance of 40 ohms. When connected in parallel their total resistance is 8.4 ohms. If one of the resistors has a resistance Rx ohm: i. Show that R2 x - 40Rx + 336=0 ii. Calculate the resistance of each b) Determine the value of the current I1,I2,I3 and I4 indicated on the diagram below;
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.
a) Two resistors, when connected in series, have a total resistance of 40 ohms. When connected in parallel their total resistance is 8.4 ohms. If one of the resistors has a resistance Rx ohm:
i. Show that R2 x - 40Rx + 336=0
ii. Calculate the resistance of each
b) Determine the value of the current I1,I2,I3 and I4 indicated on the diagram below;
Trending now
This is a popular solution!
Step by step
Solved in 2 steps with 1 images
