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How to extend flight time and battery life of quadcopters and industrial drones

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A barrier to increased flight time has been the inefficiency of turning a drone's propellers. Join…

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Performance-Based Assessments for AC Circuit Competencies

Worksheets - Drones

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Potentiometers

Worksheets - Drones

Don’t just sit there! Build something!! Learning to mathematically…

Time Constant Circuits

Worksheets - Drones

Generally speaking, how many “time constants” worth of time does…

SPICE Models

Textbook

The SPICE circuit simulation program provides for modeling diodes in…

“Long’’ and “Short’’ Transmission Lines

Textbook

In DC and low-frequency AC circuits, the characteristic impedance of…

Electron Activity in Chemical Reactions

Textbook

So far in our discussions on electricity and electric circuits, we…

Series Resistor-Inductor Circuits

Textbook

In the previous section, we explored what would happen in simple…

The J-K Flip-Flop

Textbook

Another variation on a theme of bistable multivibrators is the J-K…

Branch Current Method

Textbook

The first and most straightforward network analysis technique is…

Lock-out / Tag-out

Worksheets - Drones

In this motor control circuit, how would you ensure that there is no…

Autotransformers

Worksheets - Drones

How much voltage is there between the following pairs of points in…

Field-effect-controlled Thyristors

Textbook

Two relatively recent technologies designed to reduce the…

Counters

Worksheets - Drones

Don’t just sit there! Build something!! Learning to analyze digital…

3-bit Binary Counter

Textbook

PARTS AND MATERIALS 555 timer IC (Radio Shack catalog # 276-1723) One…

Sum and Product Notation

Textbook

For reference, this section introduces the terminology used in some…

A Binary Adder

Textbook

Suppose we wanted to build a device that could add two binary bits…

Wattmeter Design

Textbook

Power in an electric circuit is the product (multiplication) of…

Series and Parallel Capacitors

Textbook

When capacitors are connected in series, the total capacitance is…

Principles of Radio

Textbook

One of the more fascinating applications of electricity is in the…

Rate-of-change Indicator

Textbook

PARTS AND MATERIALS Two 6 volt batteries Capacitor, 0.1 µF (Radio…

Commutating Diode

Textbook

PARTS AND MATERIALS 6 volt battery Power transformer, 120VAC…