Dc Theory Level 4 Lesson 3
Question: The total voltage dropped across a series-parallel circuit equals one-half of the supply voltage.
Answer: False
Question: In a parallel portion of a series-parallel circuit, the voltage across the branches can be found by multiplying the sum of the branch currents by the equivalent resistance of the resistors in the parallel portion.
Answer: True
Question: What is the first step necessary to allow calculation of voltages in a combination circuit containing resistive loads in series and parallel?
Answer: The equivalent resistance of the circuit must be found in order to determine circuit current, which can then be used along with Ohm’s Law to determine voltage drops.
Question: Solve for the voltage which would be measured across R1. The values calculated for this question will be used for additional questions.
Answer: 10 Volts
Question: Given the circuit and parameters shown, solve for the following:
Answer: 10 V
10 V
4 V
6 V
Question: Which loads (actual and equivalent) are connected directly to the source voltage ES?
Answer: A & B
Question: Given the circuit and parameters shown, calculate the following value.
R1,2,4,5,6,7,8 = ? Ω
Answer: 25 Ω
Question: What is the total circuit current? The values calculated for this question will be used for additional questions.
Answer: 3 A
Question: How much current flows through resistor R1? (Round the FINAL answer to one decimal place.) The values calculated for this question will be used for additional questions.
Answer: 2.4 A
Question: How much voltage is dropped across resistor R1? (Round the FINAL answer to one decimal place.) The values calculated for this question will be used for additional questions.
Answer: 21.6 V