The voltage drop across a parallel portion of a series-parallel circuit can be found by multiplying the total branch current by the ________ of the parallel branch. a)smallest resistance b)sum of the resistances c)largest resistance d)equivalent resistance What is the value of the total voltage drop in a circuit that consists of 5 loads connected in parallel across a 10W power supply if the total current supplied by the source is 1A? a)10V b)5V c)50V d)2V With a short in one of the branches of a parallel circuit, which of these will happen? a)Circuit current drops to zero. b)The total circuit resistance drops to near zero resistance. c)the voltage source is shorted out. d)The voltage source will deliver its maximum current flow.
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 voltage drop across a parallel portion of a series-parallel circuit can be found by multiplying the total branch current by the ________ of the parallel branch.
a)smallest resistance
b)sum of the resistances
c)largest resistance
d)equivalent resistance
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