The superposition theorem is explained as it relates to dc circuit analysis. Examples are given.

In this interactive object, learners solve for total resistance and current, the current through each resistor, the voltage across each resistor, and the power dissipated.

Learners consider the correct type of pushbutton to use as a Stop button, the way the Stop button should be hard wired, and the PLC input instruction to use. This animated object includes a short quiz. It is recommended that learners review the learning object “The PLC Examine-Off Instruction” before beginning this object.

In this interactive object, learners solve for total resistance and current, the current through each resistor, the voltage across each resistor, and the power dissipated by each resistor.

In this learning activity you'll identify the voltage levels produced or recognized by digital logic devices as valid or invalid logic state signals.

Instructions on how to use and construct a truth table for digital devices are provided.

Instructions on how to interpret state indicator symbols for input and output terminals of digital devices is presented.

The two types of digital devices, logic gates and flip-flops, and the types of basic operations they perform are presented.

Students observe the operation of a tri-state buffer used in digital electronics. A brief quiz completes the activity.

Answer questions about solids, liquids, and gases.

Phase Change 306

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