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A closed-circuit, 500-turn coil, of resistance 100, and negligible inductance, is wound on a square frame of 40 cm side. The frame is pivoted at the mid points of two opposite sides and is rotated at 250 r/min in a uniform magnetic field of 60 mT. The field direction is at right angles to the axis of rotation.
For the instant that the e.m.f. is maximum :
(a) Draw a diagram of the coil, and indicate the direction of rotation, and of the current flow, the magnetic flux, the e.m.f. and the force exerted by the magnetic field on the conductors
(b) Calculate the e.m.f., the current and the torque, and hence verify that the mechanical power supply balanced the electric power produced.
The coefficient of linear expansion of nickel is 13 x106/°C. Find its coefficients of arealand cubical expansion
write down the matlab code for knn classification. instead of distance between your data pointsuse cosine similarity
Finite Difference Time Domain (FDTD) numerical method to develop for me a software program that simulates - evaluates Specific Absorption Rate (SAR) Distribution in a Human Head Near a Mobile Cellular Phone as a student project.
Two bit Analog -to -digital converter-MatLab (711) Let X(t)= 0.8 cos(2*pi*t)+ 0.15, 0
Use nodal analysis to find V0 in the network shown given that V1 = 7V, I1 = 3mA, R1 = 1kΩ, R2 = 5kΩ, R3 = 5kΩ and R4 = 3kΩ
Calculate the short-circuit current in the feeder and the voltage of the 400 V busbars when a symmetrical three-phase fault occurs at the far end of the feeder. That fault level of the 11 kV system is 100 MVA.
Determine which of these properties hold and which do not hold for each of the following continuous-time systems. Justify your answers. In each example, y(t) denotes the system output and x(t) is the system input.
A mini-mart has just installed a bar codereader to improve efficiency at their checkouts. Assume that the bar code is to access a filethat store the product descriptions, unit price and quantity of each product sold in the shop.
A terminated transmission line with Z0 = 60 ohm has a reflection coefficient at the load of = 0.4 60. (a) What is the load impedance (b) What is the reflection coefficient 0.3 away from the load (c) What is the input impedance at this point
Consider a series RLC circuit disconnected from a source at t=0. The circuit components are R=3 ohms, C = 500 F, and L = 1 H. We assume that Vc(0-) = 20 V and i(0-) = -0A. a) Find the natural reponse i(t) for t > 0.
A sequential circuit with three D-type flip-flops Y1Y2Y3, input X and output Z is defined with the following input/output functions: D 1 = X Y 3 + X Y 1 Y 3 D 2 = X ( Y 3 + Y 2 ) + X Y 2 Y 3 D 3 = X Y 3 + Y 2 Y 3 Z = Y3
To become familiar with computations involving phasors and the complex representation of sinusoidal ac powers, including the effect of power factor (PF) improvement on both the line current and voltage sources.
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