Electrical Engineering Answers

Design a system which determines the speed depending ambient temperature. Display should show current temperature and fan speed.

(Digital 1): This unit will determine the speed of the motor.

• Measure the ambient temperature and determine the whether the fan should spin at high(220v),medium (150v) or low speed high (80v). Send an analogue signal for the speed to the Motor Driver unit. 220, 150 and 80 volts are recommended levels.

• Allow the user to set the temperature bounds digitally for the speed settings.

•Send the current temperature value to the Speed Measurement unit.

Show circuit for this unit

A signal 𝑣(𝑡) band limited to 𝑓 Hz is sampled by a periodic pulse train 𝑆(𝑡) made up of a rectangular pulses of width seconds (centered at the origin) at the Nyquist rate (2𝑓 pulses per second). Show that the samples signal 𝑣 𝑡 is given by: 𝑣 𝑡 𝑣 𝑡 ∑ ( ) 𝑣 𝑡 𝑐𝑜𝑠𝑛𝑤 𝑡 𝑤 𝜋𝑓 Show that the signal 𝑣(𝑡) can be recovered by passing 𝑣𝑠(𝑡)through an ideal low pass filter of bandwidth 𝑓𝑚 and a gain of 4

For the circuit shown below, determine the range of 𝑉𝑖𝑛 for which 𝐷1 is forward-biased. Assume an ideal diode.

Starting with n=1,considering even and odd number separately. Find the general term for the sequence 1,1/3,1/3,1/5,1/5,1/7,1/7,1/9,1/9,...

a boy wishes to throw a ball over a flat roofed school that stands 12m wide and 7.5m high on level ground assuming that the ball will leave his hand at a height of 1.5m above the ground. Determine how far from the wall he should stand in order to make the ball clear the roof with the least effort that is with minimum initial velocity

A half wave controller converter having angle alpha =30 find rectification efficiency

Design a system that will determine the speed depending ambient temperature. The display should show the current temperature and fan speed.

(Digital ): This unit will determine the speed of the motor.

• Measure the ambient temperature and determine the whether the fan should spin at high(220v),medium (150v) or low speed high (80v). Send an analogue signal for the speed to the Motor Driver unit. 220, 150 and 80 volts are recommended levels.

• Allow the user to set the temperature bounds digitally for the speed settings.

•Send the current temperature value to the Speed Measurement unit.

Show the circuit for the design.

 An object is moving with a uniform acceleration 

a=2t - -0.25 , ms-2, determine the functions for:

1. Velocity vms-1 – given v0=10ms-1
2. Displacement sm – given s0=5m
3. Calculate the values of v and s for:
4. t=2s
5. t=5s

Explain the concept of physical memory formation in Intel 8086 microprocessor

https://www.bing.com/images/blob?bcid=S8XhckJEgu0DJRl6MHg.D1rzofx3.....7Y

please solve