Exam 8: Circuit Theorems and Conversions

-The concept that states the equivalency of two voltage sources means that for any given load resistance connected to the two sources, the same load voltage and load current are produced by both sources is called:

-The first steps to Nortonizing a circuit are:

The superposition theorem is used to simplify circuit analysis where two or more sources are present.

An ideal voltage source has infinite internal resistance.

-Given the circuit in Figure , Calculate the current I_N,) and R_N, with R_L disconnected.

-What is the equivalent current source when VS = 100 V, RS = 40 Ω?

When a thermistor is used in a basic Wheatstone bridge measuring circuit, the bridge becomes as the thermistor's resistance changes with .

Figure 8-4 -Given the circuit in Figure 8-4, Thevenize the bridge circuit between points "A" and "B". Find the current flow through the load RL).

Delta to wye configurations are used in:

Thevenin's theorem is used to simplify complex networks to a simple voltage source with its source resistance.

A practical current source has infinite internal resistance.

A practical voltage source has infinite internal resistance.

Power effects in a dc network cannot be determined using superposition because:

Calculate the voltage output of a source, when the source voltage equals 50 V, the source internal resistance is 10 Ω and the load resistance is 50 Ω.

-Given the circuit in Figure, Calculate VTH and RTH.

The internal resistance of an ideal voltage source is:

Figure 8-2 -Maximum power is delivered to the load under what conditions?

Norton's theorem states that you can replace a dc network with an equivalent circuit consisting of:

Maximum power transfer occurs when the load resistance equals the source resistance.

What is the symbol usually used inside a circle to designate a current source?