Engineering Board Exam Reviewer · Circuit Theorems and Conversions · easy
Convert the voltage source and series resistor shown (V=20 V, R=5, ) into an equivalent current source in parallel with a resistor. Find the current of the equivalent source.
- 100 A
- 2 A
- 4 A
- 0.25 A
Answer
C. 4 A
Solution
A source transformation gives I=V/R= 20 V5, =4 A, with the same resistance 5, in parallel.
More Circuit Theorems and Conversions questions
- Three 30, resistors are connected as a delta (triangle). What is the resistance between any two corners?
- Three branches are connected in parallel as shown, with V1=6 V, V2=6 V, V3=30 V, R1=12, , R2=12, , and R3=12, . Use Millman's theorem to…
- The bridge network shown has R1=30, , R2=60, , R3=15, , R4=30, , and R5=90, and is driven by a 36 V source. Use a delta-wye conversion to…
- In the circuit shown, V1=12 V, V2=6 V, R1=15, , R2=2, , and R3=10, . Use superposition to find the net current through R2 (magnitude).
- For the circuit shown, V=20 V, R1=6, , R2=2, , and R3=12, . Find the Thevenin resistance RTh at terminals a-b.
- In the circuit shown, V=48 V, R1=10, , R2=2, , and RL=5, . Use Thevenin's theorem to find the power dissipated by RL.
- A circuit has a Thevenin equivalent of 20 V and 8, . What is the maximum power it can deliver to a load?
- A circuit has a Thevenin equivalent of VTh=10 V and RTh=5, . What current flows when a 15, load is connected?
- When using superposition to find the effect of one source, the other independent voltage sources and current sources are replaced by
- Three branches are connected in parallel as shown, with V1=9 V, V2=18 V, V3=12 V, R1=12, , R2=3, , and R3=6, . Use Millman's theorem to…