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Define the term multi-mode fibre shortly.
Multi-mode fibre:
This type of fibre permits more than one mode to travel by this. As this has to permit more number of modes to travel which, the fibre has to have a larger core. A classical multimode fibre has a core diameter in order of from 150 to 200µ m. That a large core permits more number of modes to travel but also makes this easier to launch the light in fibre and to join two fibres together. Conversely, larger the number of modes, larger will be the dispersion of light into the fibre.
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The following steps are taken in the manufacturing of a resistor: (1) PREPARATION OF SUBSTRATE: Substrate should hold the resistive element. It should be a good insula
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Some wire of cross-sectional area 1mm 2 has a resistance of 20 ?. Determine (a) the resistance of a wire of the same length and material if the cross-sectional area is 4mm 2 ,
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(a) Convert the network to the left of terminals AB in Figure 13.60 to an equivalent Thévenin circuit by initially converting to a Norton equivalent network. (b) Determine the
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