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A toroid of mean radius 35 mm, effective csa 4 cm2 and relative permeability 200, is wound with a 1000 turn coil that carries a current of 1.2 A. Calculate
(a) the mmf,
(b) the magnetic field strength,
(c) the flux density and
(d) the flux in the toroid.
Explain how an exergetic life-cycle assessment can be performed.
A mummy picks up a calculator and starts adding odd whole numbers together, in order: 1+3+5+... etc. What will be the last number the mummy will add that will make the sum on his calculator greater than 10,000
Explain how the basic strategy of control is employed in a room air conditioning system. What is the controlled variable? What is the manipulated variable? Is the system self-regulating?
These devices are to be used in conjunction with a logic network of AND and OR gates and the output of the network is to be 1 when two or more of the sensing devices are producing signals of 1. Draw a network diagram of a suitable gate arrangement.
In dictionary coding, if there are 60 characters in the message, how many times is the loop in the compression algorithm iterated? Explain.
Specifications of an analog filter are given below: Butterworth highpass filter Absolute passband gain=1 3-dB cutoff frequency at 4000 radians/second 40 dB attenuation at the stop frequency of 800 radians/second
q1. let us consider a three-phase balanced y-connected source with vab400 30angv rms and 50 hz. this source supplies
Design a second-order Butterworth bandpass filter with the following specifications: Bandwidth:400HzCenter frequency: 2000Hz Determine the transfer function and realize it using the Sallen-Key circuit topology.
The phase angle of an RLC series circuit with a capacitive reactance of 40 ohms, a resistor of 100 ohms and a certain inductor at 1000 Hz is 40.0 degrees. What is the value of the inductance in this circuit?
Discuss the analogy between the magnetic vector potential due to an infinitesimal current element and the electric scalar potential due to a point charge.
Consider two parallel cylindrical conductors with radius aseparated by distance 2d. Calculate the capacitance per unit lengthbetween the two. You may assume that the distance d is much greaterthan the wire radius a.
Determine the bandwidth of the modulator output if a power ratio, Pr, of 0.8 is needed. Repeat for a power ratio of 0.9.
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