disadvantages of network topologies

The disadvantages associate with digital communication systems include (i) Increased transmission (ii) Increased system complexity Although digital communication is becoming increasingly attractive for practical use, it is a fact that analog communication systems are still in existence. ..

A source of emf is connected across one pair of opposite junctions (A and C), and a galvanometer G across the other opposite pair (B and D). The key K 1 is closed first and then K 2 . The value of R is varied till the galvanometer shows no deflection, i.e., I g = 0. Then, the bridge is said to b..

The table shows the number of viewers of different TV channels in the U.S. Choose the appropriate box-and-whisker plot for the data and find the mean number of TV viewers. Number of viewers of different TV channels in U.S. Channel Number of viewers (in millions) Discovery 20 Star Sports 10 Star Mov..

A recent survey by a broadcasting company revealed that the number of viewers of different T.V channels in U.S.A are as recorded. Choose the appropriate box-and-whisker plot for the data and find the mean number of T.V viewers. Number of viewers of different T.V channels in U.S Channel Number of vi..

The cardiac muscle fibres do not form fasciles. They are arranged in the form of a network. The muscle fibres are elongated, cylindrical and branched. The branches become inter-connected with one another to form a network. The space between the muscle fibres is filled with..

Within the nuclear membrane, completely filling up the space, is a clear, semi-solid, granular substance or matrix called the nucleoplasm. The nucleolus and the chromatin network lie suspended in the nucleoplas..

Chromosomes at each pole uncoil and elongate to form chromatin. Nucleolus and nuclear membrane are formed surrounding each chromatin network. Asters and spindle fibres disappear and centrioles divide. Daughter nuclei are forme..

The 'modem' is a contraction of the term modulator-demodulator. It is a conversion that facilitates the transmission and reception of the data over the public switched telephone network (PSTN..

In covalent solids, the constituent particles are atoms of same or different kinds. Covalent bonds network, forming a continuous giant interlocking structure of atoms throughout the crystal that hold them together. They are also referred to as covalent network solids. Beca..

Thermosetting polymers made from relatively low molecular mass semi-fluid polymers which when heated in a mould forms an insoluble hard mass which is infusible. This is due to extensive crosslinks between the different polymer chains forming three dimensional network of bonds. Example: B..