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1. What is the function of a diode bridge rectifier? State one disadvantage of the diode...
Capacitor is connected to secondary (1) A fullwave bridge rectifier power supply is powered from the secondary of a transformer which has a peak secondary voltage of 22V. The primary of the transforme...
Capacitor
is connected to secondary
(1) A fullwave bridge rectifier power supply is powered from the secondary of a transformer which has a peak secondary voltage of 22V. The primary of the transformer is connected to a 50Hz, 230Vus power supply. A 2700μF filter capacitor is used. A current of 1.5 Amp is drawn from the supply (i) Sketch a schematic diagram of the setup (ii) Calculate the mean dc output voltage (ii) Assume that each diode conducts for one-twelfth...
Question 4. (a) A full-wave bridge rectifier power supply is powered from the secondary of a...
Question 4. (a) A full-wave bridge rectifier power supply is powered from the secondary of a transformer which has a rms secondary voltage of 15.6V. The primary of the transformer is connected to a 50Hz, 230VRMS power supply. A 2700uF filter capacitor is used. A current of 1.5 Amp is drawn from the supply. (i) Sketch a schematic diagram of the setup. (ii) Calculate the mean de output voltage. Assume each power diode has a forward voltage drop of 1...
Ctri Question 3 (20 Marks) Lab 1-Zener Circuits and Applications Theory: Zener diode is designed ...
Ctri Question 3 (20 Marks) Lab 1-Zener Circuits and Applications Theory: Zener diode is designed to operate in reverse conduction. Zener breakdown occurs at a precisely defined voltage, allowing the diode to be used as a voltage reference or clipper. While Zener diodes are usually operated in reverse conduction, they may also be operated in cutoff and forward conduction. There are two different effects that are used in "Zener diodes". The only practical difference is that the two types have...
4) Identify the following key features/properties using intervals only: intervals when the function is positive/negative, intervals when the function is increasing/decreasing, intervals when t...
4) Identify the following key features/properties using intervals only: intervals when the function is positive/negative, intervals when the function is increasing/decreasing, intervals when the slope of the function is positive/negative, and intervals when the slope of the function is increasing/decreasing do the questions.) All calculations must be performed using exact values (fractions and radicals) cm Part A - Knowledge/Understanding and Application, Making Connections 1) Sketch the rational function f(x) hand: domain, intercepts, asymptotes, and behavior near the asymptotes. You would...
3. List the vertex form of the quadratic function and state all relevant information. 4. Convert ...
3. List the vertex form of the quadratic function and state all relevant information. 4. Convert the quadratic form f(x) +3-4 into standard form (le. multiply t out). Then check your solution to example 2. 5. Continuing with example 2, read the questions and solutions. Paying particular attention to part d. How can we find the axis of symmetry (aka the x-value of the vertex)? 6. (Note: we will not be covering 'completing the square' in this class, but feel...
Question 1 (30 points You are required to state and describe which manufacturing processes to use...
Question 1 (30 points You are required to state and describe which manufacturing processes to use for the manufacture of the shown part. This may include more than one manufacturing process (primary step and then one or more secondary steps). Study the shape carefully and consider all acceptable options to achieve the final shape given. The part is made of a brass alloy and its largest diameter is 30 cm, with a weight of 17 kg. Suu A. [10 marks]...
Please answer the following questions: 1) Describe the main functions of a computer network (12 marks)...
Please answer the following questions: 1) Describe the main functions of a computer network (12 marks) 2) In your own words, compare the three types of files: directories, ordinary files, and special files. Explain what would happen if a user modified a directory file (10 marks) 3)What are the advantages of having a Windows system using the menu-driven interface, instead of typing commands. Give at least one example where having menus is an advantage (6 marks) 4) Identify at least...
6. The quantity of a product demanded by consumers is a function of its price. The quantity of on...
6. The quantity of a product demanded by consumers is a function of its price. The quantity of one product demanded may also depend on the price of other products. For example, if the only chocolate shop in town (a monoploy) sells milk and dark chocolates, the price it sets for each affects the demand of the other. The quantities demanded, q1 and q2, of two products depend on their prices, pi and p2, as follows: q1150- 2p1 - p2...
Make sure you show all working and describe each step in your calculations. 1. A signum function ...
signals and communications 2
Make sure you show all working and describe each step in your calculations. 1. A signum function is defined as sgn(t) = { 1、12 0 1 t<0 Plot and express this function in terms of the unit-step function. 5 marks/ Determine and plot the even and odd parts of the signal 2. x(t) (te-3 +2)u(t). 5 marks 3. If prove that y[n-m] = x[n-m] * h[n]. 5 marks 4. Assuming α > 0, plot the signal...
1. In your own words, what is the Sociological Imagination? Give one example of a personal...
1. In your own words, what is the Sociological Imagination? Give one example of a personal problem that could be construed as a critical issue. 2. In The Corporation, a CEO claims that outsourcing jobs to low-wage workers is ultimately beneficial to those workers. Do you agree or disagree with the CEO's claim that outsourcing is ultimately helpful for people living in poorer countries? 3. Give an example of behavior that was once tolerated or seen as natural and is...
Capacitor
is connected to secondary
(1) A fullwave bridge rectifier power supply is powered from the secondary of a transformer which has a peak secondary voltage of 22V. The primary of the transformer is connected to a 50Hz, 230Vus power supply. A 2700μF filter capacitor is used. A current of 1.5 Amp is drawn from the supply (i) Sketch a schematic diagram of the setup (ii) Calculate the mean dc output voltage (ii) Assume that each diode conducts for one-twelfth...
Question 4. (a) A full-wave bridge rectifier power supply is powered from the secondary of a transformer which has a rms secondary voltage of 15.6V. The primary of the transformer is connected to a 50Hz, 230VRMS power supply. A 2700uF filter capacitor is used. A current of 1.5 Amp is drawn from the supply. (i) Sketch a schematic diagram of the setup. (ii) Calculate the mean de output voltage. Assume each power diode has a forward voltage drop of 1...
Ctri Question 3 (20 Marks) Lab 1-Zener Circuits and Applications Theory: Zener diode is designed to operate in reverse conduction. Zener breakdown occurs at a precisely defined voltage, allowing the diode to be used as a voltage reference or clipper. While Zener diodes are usually operated in reverse conduction, they may also be operated in cutoff and forward conduction. There are two different effects that are used in "Zener diodes". The only practical difference is that the two types have...
4) Identify the following key features/properties using intervals only: intervals when the function is positive/negative, intervals when the function is increasing/decreasing, intervals when the slope of the function is positive/negative, and intervals when the slope of the function is increasing/decreasing do the questions.) All calculations must be performed using exact values (fractions and radicals) cm Part A - Knowledge/Understanding and Application, Making Connections 1) Sketch the rational function f(x) hand: domain, intercepts, asymptotes, and behavior near the asymptotes. You would...
3. List the vertex form of the quadratic function and state all relevant information. 4. Convert the quadratic form f(x) +3-4 into standard form (le. multiply t out). Then check your solution to example 2. 5. Continuing with example 2, read the questions and solutions. Paying particular attention to part d. How can we find the axis of symmetry (aka the x-value of the vertex)? 6. (Note: we will not be covering 'completing the square' in this class, but feel...
Question 1 (30 points You are required to state and describe which manufacturing processes to use for the manufacture of the shown part. This may include more than one manufacturing process (primary step and then one or more secondary steps). Study the shape carefully and consider all acceptable options to achieve the final shape given. The part is made of a brass alloy and its largest diameter is 30 cm, with a weight of 17 kg. Suu A. [10 marks]...
6. The quantity of a product demanded by consumers is a function of its price. The quantity of one product demanded may also depend on the price of other products. For example, if the only chocolate shop in town (a monoploy) sells milk and dark chocolates, the price it sets for each affects the demand of the other. The quantities demanded, q1 and q2, of two products depend on their prices, pi and p2, as follows: q1150- 2p1 - p2...
signals and communications 2
Make sure you show all working and describe each step in your calculations. 1. A signum function is defined as sgn(t) = { 1、12 0 1 t<0 Plot and express this function in terms of the unit-step function. 5 marks/ Determine and plot the even and odd parts of the signal 2. x(t) (te-3 +2)u(t). 5 marks 3. If prove that y[n-m] = x[n-m] * h[n]. 5 marks 4. Assuming α > 0, plot the signal...
1. In your own words, what is the Sociological Imagination? Give one example of a personal problem that could be construed as a critical issue. 2. In The Corporation, a CEO claims that outsourcing jobs to low-wage workers is ultimately beneficial to those workers. Do you agree or disagree with the CEO's claim that outsourcing is ultimately helpful for people living in poorer countries? 3. Give an example of behavior that was once tolerated or seen as natural and is...
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