The heater element of a kettle has a constant resistance of 105ohm and apllied voltage of 240V
Calculate the time taken to raise the temperature of on litre of water from 15degrees celsius to 90 degrees celsius assuming that only 80% of the power input to the kettle is usefully employed
If the water equivalent of the kettle is 150g, find out how long it will take tobraise a second litre of water through the same temperature range immediately after the first time.

can someone explain to me a the design of macro in verilog(high level view)?

Explain the following code. What language? What does it do? What is the result?

                <!DOCTYPE teo[

                                <ELEMENT teo((stations| databases)+)>

                                <ELEMENT stations(stationName stationLocation sensors*)>

<ELEMENT databases(databaseName databaseType )>

<ELEMENT stationName(#PCDATA)>

<ELEMENT stationLocation(#PCDATA)>

<ELEMENT sensors (sensorName phenomenon)+>

<ELEMENT sensorName(#PCDATA)>

<ELEMENT phenomenon(#PCDATA)>

<ELEMENT databaseName(#PCDATA)>

<ELEMENT databaseType(#PCDATA)>

<!ATTLIST stations boundingBox CDATA #required>

]>

Design a Moore state machine that has an input w and an output z that should output a ‘1’ when the previous 4 values of w were 1001 or 1111. Overlapping patterns are allowed. Show the state diagram and state table. Use a simple binary counting order for the state assignment. Derive all of the next-state and output equations. You do not need to draw the resulting circuit, instead write a Verilog module for it.

Explain the following code. What language? What does it do? What is the result?

SELECT date_trunc('month',date),avg(value)

FROM rain

GROUP BY date_trunc ('month',date)

ORDER BY date_trunc('month',date);

Explain the following code. What language? What does it do? What is the result?

SELECT date_trunc('month',date),avg(value)

FROM rain

GROUP BY date_trunc ('month',date)

ORDER BY date_trunc('month',date);

Design a bandpass active filter to pass frequencies between 700 Hz and 2100 Hz, and with K= 63.

Please include the transfer function, blot plot, multisim, and the matlab code.

In ATmega328P What register are available? Address? Data? Special? Other?

Hello, Do you mind to list the registers as classified under either address, data , special and others

Q13. A buck converter is constructed with a MOSFET which has an on-state resistance of 75m?, and a diode with a forward voltage drop of 1.3V. The MOSFET exhibits switching rise and fall times of 50ns. The converter operates from an input voltage of 400V and. The converter supplies 1.2kW at an output voltage of 300V and switches at 150kHz. The MOSFET and the diode are mounted onto separate heatsinks. The ambient temperature in which the power converter operates is 45°C.

Other thermal data are:

MOSFET Junction to case thermal resistance, R?jc 0.5°C/W, Case to heatsink thermal resistance, R?chs 1.2°C/W

Diode Junction to case thermal resistance, R?jc 0.8°C/W ,Case to heatsink thermal resistance, R?chs 1.5°C/W

(a) Calculate the power dissipation in the MOSFET.

(b) Calculate the power dissipation in the diode.

(c) Calculate the thermal resistance of each heatsink if the temperature of the devices’ junctions is to be restricted to 110°C.  

6.2 Name the three key components of a phase locked loop and write a brief explanation of how each component works.

6.2 Name the three key components of a phase locked loop and write a brief explanation of how each component works.

Briefly describe how strain gauges may be used to measure the following signals:

(a) Force

(b) Displacement

(c) Acceleration

(d) Pressure

(e) Temperature.

1) Illustrate an NMOS transistor channel condition for 3 different regions of operation when 1) VGS<VTN . (12 points)

2) Illustrate and Briefly explain saturation phenomenon when VDS> VGS-VTN in an NMOS. (10 Points)

Write C18 program to get bit RB3 and send it to RC2.

(TCO 5) Briefly describe the operation of an electromagnetic relay.