What determines: a. The current through an ideal voltage source? b. The voltage across an ideal current source?
Known quantities:
Resistance of external circuit.
Find:
a) Current supplied by an ideal voltage source
b) Voltage supplied by an ideal current source.
Assumptions:
Ideal voltage and current sources.
Analysis:
a) An ideal voltage source produces a constant voltage at or below its rated current. Current is determined by the power required by the external circuit (modeled as R).
b) An ideal current source produces a constant current at or below its rated voltage. Voltage is determined by the power demanded by the external circuit (modeled as R).
A real source will overheat and, perhaps, burn up if its rated power is exceeded.
You might also like to view...
What are the six groups of diseases that affect dogs?
What will be an ideal response?
Put a ball bearing in the freezer before installation.
Answer the following statement true (T) or false (F)
What is a corner weld?
What will be an ideal response?
The unit used in the SI system for all forms of energy is:
A) Horsepower. B) Watts. C) Therms. D) Joules.