Let us assume that a resistor connected across terminals a and b in the following circuit draws a current of 5 A and the voltage drop across 20 Ω resistor is 60 v. What is the value of that resistor between terminal a and b?
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.
Let us assume that a resistor connected across terminals a and b in the following circuit draws a current of 5 A and the voltage drop across 20 Ω resistor is 60 v. What is the value of that resistor between terminal a and b?
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