18. explain the process of biomass conversion.

13. explain how is plasma confined for fusion?

14. what is cold fusion, and why didn't it work?

10. what is fusion any why is it considered the future of energy?

Using design theory:

construct a difference aplifier that meets the following design equation: V0=2Vb-4Va. You must use resistor values that range from 200 Ohms - 50k Ohms. The rail voltage must be +- 12V.

Use your design equations to determine the output voltage Vo for the following input cases:

1. Va= 1.0V DC, Vb= 2V DC

2. Va=Vb=1.0 Vpp 1 kHz sinusoidal voltage

3.Va=Vb=3.0 Vpp 1kHz triangular waveform voltage

for ql200 board.

for ql200 board.

Suppose we have a direct-mapped cache that can hold a total of 1024 blocks with 4 words per block.

Compute the block index, block offset, and the tag for the following addresses:
(a) 0x11001001
(b) 0x00010014
(c) 0x01000004
(d) 0x01001018
(e) 0x7bdcca10

We want to design a simple "four clock pulse" timer circuit. In addition to the clock input, the timer has a "Restart" input (R), three "data" outputs (ABC) which indicate the count, and one "beeper" output (D). The behavior of the circuit is as follows:

Idle Mode The timer output is ABC=100 and the beeper is off (D=0) as long as R=0. If R=1 on any clock edge in this mode, the timer goes into the...

Restart/Hold Mode The timer output is ABC=000 and the beeper is off (D=0) as long as R=1. If R=0 on any clock edge in this mode, the timer goes into the...

Counting Mode Provided that the counter is not restarted (i.e. provided that R=0), the timer goes through the sequence of data and beeper outputs shown below (one full clock pulse each) and then returns to the Idle mode. If R=1 on any clock edge in this mode, the timer goes into the Restart/Hold mode.

Use D-flops, AND gates, OR gates, and inverters to design a Moore machine that performs this function. No more than 3 D-type flip-flops should be used. Carry out your solution as follows:

(a) How many states does this timer have? Make a list of these states, giving each a label and a verbal description. How many bits are required to specify all states? Name the state bits and assign values to each for every state.

(b) Construct a complete state table for this machine, including all inputs, outputs, and states. Include any don't-care conditions.

(c) Construct a state diagram for this machine.

(d) How many signals must be generated by combinational logic for this machine? What are they? Use Karnaugh maps to obtain minimized Boolean expressions for these signals.

(e) Draw a complete circuit diagram for your state machine, showing all inputs and outputs, flip-flops, combinational circuits, and interconnects.

1. In single-phase circuits test, consider the instantaneous power waveforms. How is the value of the real power obtained in the software? What is the significance of the instantaneous power going negative (consider direction of power flow and reactive power)?

2.  For each of the resistive, inductive and capacitive loads (loads 1-3), comment on whether the current waveform is smoother, noisier or the same shape as the voltage waveform. Explain the results using the following, for a resistor i = v/R, for an inductor, the current is proportional to the integral of the voltage , while in a capacitor, the current is proportional to the derivative of the voltage.

3.

Calculate the inductance and capacitance (showing your working) corresponding to the calculated reactances in rows 2 and 3 of Table 3. Compare the calculated capacitance to its nominal value.

4. Show the formulas (e.g. Z₁//Z₃, you do not need to show your working) you would use to calculate the impedance for loads 4 to 6 in terms of the impedance of loads 1 to 3.

Write a program to remove an element from an array at the given position k and push the rest of the array elements one position back. Then insert the removed element at the beginning. Position k is entered through keyboard. For example, if the original array x is {'r', 'c', 'm', '7', 'w', '3', 'q'} and k = 3, the array will be changed to {'7', 'r', 'c', 'm', 'w', '3', 'q'}. Hint: Sequence of moving the element is important. You need to define a temp variable to hold value of x[k] before you move the rest of the array elements one position back. Finally, put the saved temp variable to the first element of the array. (in C please)

Draw the two transistor equivalent circuit of the SCR and explain its operation?

For PIC16F1619, how does the TIMER0 prescalar work? If we set PS2 = 0, PS1 = 0, and PS0 = 1 in the OPTION_REG register, how often does TIMER0 generate an interrupt?