LESSON 05 – COMBINATION CIRCUITS

WORK EXAMPLES

EXAMPLE #1

Consider the circuit below and answer the questions.

TRUE OR FALSE.

a) The value of I₄ is the same as the value of I_T.

b) The value of I₃ is the same as the value of I_T.

c) The value of I₁ is the same as the value of I₃.

d) The value of I₁ is the same as the value of I₂.

e) The resistance of branch 12 is 350 ohms.

f) The resistance of the parallel section is more than 200 ohms.

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EXAMPLE #2

Consider the following circuit and solve for all unknowns.

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EXAMPLE #3

Consider again the following circuit.

We know that the voltage drop over the branch with R1 and R2 is 9V. Are you able to calculate the voltage drop over R1 and the voltage drop over R2 without figuring out the current in the branch?

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