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Write a note on superconductors.
Superconductors- The resistivity of most metals rises with increase in temperature and vice-versa. Some metals and chemical compounds are there, whose resistivity becomes zero while their temperature is brought near 00Kelvin (-2730C). At that stage these metals or compounds are be have attained superconductivity. Illustration - mercury becomes superconducting at about 4.5 Kelvin (-268.50C). Superconductivity was discovered through Heike Kamerlingh Onnes. The transition make normal conductivity to superconductivity takes place almost rapidly; this occurs over a very narrow range of temperature regarding 0.050K. The temperature at that the transition takes place from the state of normal conductivity to that of superconductivity is termed as transition temperature. Superconductors are utilized for producing very magnetic fields of approximately 50 Tesla. Magnetic energy can be stored in huge superconductors and drawn as needed to counter the voltage fluctuations throughout peak loading. Superconductors can be utilized to perform logic and storage functions in computers. Since there is no, I2R losses in a superconductor, therefore power can be transmitted by the superconducting cables without any losses. Superconducting property can be vanished by applying external magnetic field as in figure (b). In figure (b) HC is critical magnetic field and TC critical temperature.
Compare with memory The contents of the memory of the memory location pointed by HL register pair are compared with the contents of the accumulator. The instruction f
Speed Control Using Phase Controlled Converters Phase controlled converters converts a constant ac voltage into variable controlled dc voltage. This variable dc voltage
ABOUT ASSIGNMENT ON MAGNETIC INDUCTION NEAR A LONG WIRE
Simplified operation: Figure: Simple circuit to show the labels of a bipolar transistor. The essential value of a transistor comes from its capability to make use
report on diode
The spectrum analyser plots amplitude against frequency, in other words it shows signals in the frequency domain. The spectrum analyser has the same trigger options as the oscillos
How is segmentation implemented in typical microprocessors? The first advantage is as memory segmentation has is that only 16 bit registers are needed both to store segment bas
Q. What do you mean by Load factor? The two components of electric service are demand and energy. Demand is the maximum level of real power which the electric utility must supp
Q. The inductance per unit length in H/mfor parallel plate in?nitely long conductors in air is given by L = µ 0 d/w = 4π×10 -7 d/w, where d and w are inmeters.Compute L (per unit
Ask question #Minwhat is biasing of clamper imum 100 words accepted#
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