Electrical Engineering Answers

A concentration cell was constructed by immersing two silver electrodes in 0.05 M and 1M AgNO₃ Solutions. Give the cell representation write the cell reaction and calculate the emf of the cell

Draw circuit diagram of three phase system RL series branch in delta connected. Also show placement of ammeter and voltmeter. (Mention the rating of load according to your roll number) (4)

b. How reactive power compensation is different in capacitor banks and FACTS ? 

In electrical drive, how to maintain the torque but the speed is varied.

A balanced Y load having a 15+j25 Ω load impedance in each leg is connected to a three-phase, four-wire, Y-connected generator having a line voltage of 230 V. The line impedance per phase is 0.5+ j1.5 Ω . Answer the following:

a. Draw the circuit showing the given values.

b. Calculate the line voltages of the load.

c. Calculate the phase currents of the load.

d. Calculate the power consumed by the 3-phase load.

Assume that we need an 8031 system with 64KB of program space and 192K bytes to store data in an

available NV-RAM chip having 256K bytes capacity. (a) Show the connection of the 8031 to this single

256K×8 NV-RAM chip. (b) Show how various blocks of this single chip are accessed.

In a beverage processing plant, a XYZ product is filled in different size bottles. To maintain the standard of the filling plant, the plant is equipped with a level-based alarm system. The system consists of a sensor, which return logic ‘1’ in case of filled bottle and logic ‘0’ in case of low-level filling or empty bottle. The system is also equipped with a negative logic alarm system. Now, being a design engineer of the beverage processing plant, you need to design a system which detects four consecutive low-level filled/empty bottles and activate the alarm. For designing the system, you are available with JK-Flip Flops and basic logic gates (i.e. AND, OR and NOT).

Simplify the following Boolean expression:

𝐴𝐵̅̅̅̅ + 𝐴̅+ 𝐴𝐵 ̅̅̅̅̅̅̅̅̅̅̅̅̅̅̅̅̅