1. Which of the following statements accurately describe the "Data" section of a lab report? O It shows charts and graphs that can help people visualize results. O It explains the research other scientists have already done. O It contains the raw measurements taken during the experiment. O It discusses the meaning of the results of the experiment.

Explain briefly about the the circuit diagram and explanation of the analysis of equations.

I have an O Gauge track and would like to convert it into a “sensored” track. Additionally, I would like to connect that track to an ESP-WROOM-32 board that should flash an LED whenever the track detects a non-moving train. Please list all the components (and how many of each) needed. Also, what’s the procedure for connecting the components?

Question 1 A microcontroller is used to control three LEDS in series (Blue, Red and White). Assume the current rating is 50mA. 1. Design an interfacing circuit for this purpose? 2. List the required components and illustrate their purpose? 3. What is the type of this interfacing?

1) A 5 turn, 100 K2 potentiometer shaft is turned 720 degree, the voltage Vout between the arm and ground changes by 16 volts. a. What is the gain (Kp) of the potentiometer in volt/degree? b. What is the ER, the maximum voltage? c. If the measured resistance at midpoint is 50.5 K2, what is its linearity?

2. Describe what you understand by overcurrents and indicate the protection devices that can be used for this purpose. What do you know about selectivity and parity between protections? Justify your answer.

P4. Consider the circuit-switched network in Figure 1.13. Recall that there are 4 circuits on each link. Label the four switches A, B, C, and D, going in the clockwise direction. What is the maximum number of simultaneous connections that can be in progress at any one time in this network? Suppose that all connections are between switches A and C. What is the maximum number of simultaneous connections that can be in progress? Suppose we want to make four connections between switches A and C, and another four connections between switches B and D. Can we route these calls through the four links to accommodate all eight -connections?

1-What phrase is used when a substitution is permitted for a specific item? 2-The specifications state that all work shall be done... 3-What phrase is used when a substitution is permitted for a specific item? 4-What is the purpose of an electrical symbol? 5. Where are notations found?

Indicate which of the following statements refer to LCD displays and which refer to LED displays:   a. Emit light   b. Reflect ambient light   c. Are best for low-power applications   d. Require an AC voltage   e. Use a 7-segment arrangement to produce digits   f. Require current-limiting resistors

In simple explanation, why transistor is called CURRENT CONTROLLED DEVICE? I really need to understand this