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The force between two wires 1 metre apart and each carrying 1 amp is 2 x 10-7 Newtons when in a vacuum (or in practice, air).However, it is found experimentally that the force is different if the wires are embedded in other materialsConsequently it is necessary to introduce a further parameter, known as the 'relative permeability', µr, so that the force on a wire of length l is:
Where µo = 4µ x 10-7 Henrys/metre and µris a constant for a given material known as the relative permeability. It takes account of the effect that the medium has on the forceNote that the relative permeability is a dimensionless quantity that can be greater or less than unity.
Q. For the circuits shown in Figure, sketch the frequency response (magnitude and phase) of ¯V out / ¯V in .
Q. Explain Time-invariant versus time-varying systems? When the parameters of a control systemare stationary with respect to time during the operation of the system, the system
Q. For the circuit shown in Figure, determine v out (t).
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Geometric transformations Apply the following geometric transformation to a set of points. Generate randomly coordinates for 1 point X=(x,y). X=100*rand(2,1) x=X(1,1)%to
Explain the properties of high resistivity materials. High resistivity materials: The conducting materials containing resistivity from 10 -6 to 10 -3 ohm-m come under such
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Depletion type MOSFET The channel is of silicon. It can be two type of channel that is an n-type or p-type channel; it is still mostly silicon. After that, we take note that
what is the advantage and disadvantage of back to back test of transformer
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