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crown glass has a refractive index of 151 in the visible spectral region calculate the reflectivity of the air-glass
a coil of wire 01 m long and having 15 turns carries a current of 10 aa compute the magnetic induction if the coil is
germanium used for transistors has a resistivity of 2omegamiddotcm and an electron hole concentration of 19 times 1015
silicon has a density of 240 gcm3a what is the concentration of the silicon atoms per cubic centimeterb phosphorus is
the detectors used in optical fiber networks operating at 850 nm are usually made of silicon which has an absorption
assume there exists some hypothetical metal that exhibits ferromagnetic behavior and that has a simple cubic structure
the magnetocaloric effect scientific american may 1998 p 44 relies on the ability of a ferromagnetic material to heat
a team of chemical engineers proc natl acad sci usa 94 8984 1997 has shown that oxidized polypyrrole supports the
how to prepare seminar on the topic mobile technologies complete the paper which should be approximately 3500 words in
a power transistor is specified to have a maximum junction temperature of 150c when the device is operated at this
a power transistor operating at an ambient temperature of 50degc and an average emitter current of 3 a dissipates 20 w
a particular transistor has a power rating at 25degc of 10 w and a maximum junction temperature of 150degc what is its
a particular transistor having a thermal resistance thetaja 25degcw is operating at an ambient temperature of 30degc
for the circuit in figa if va is a sine wave what is the maximum power supplied to a load of resistance r in terms of
a pulse waveform swinging between plusmn10 v has a duty ratio of 065 what is its average value if the duty ratio is
it is required to use the lm380 power amplifier to drive an 8-omega loudspeaker while limiting the maximum possible
it is required to design the circuit of fig 1225 to drive a load resistance of 50omega while exhibiting an output
consider the design of the class ab output stage of fig for the following conditions the stage is operated from
consider the thermal shutdown circuit shown in fig at 25degc z1 is a 68-v zener diode with a tc of 2 mvdegc and q1 and
a class ab output stage such as that in fig drives a load resistance rl of 100omega what bias current iq will serve to
a class ab output stage resembling that in fig 1211 but utilizing a single supply of 10 v and biased at vi 6 v is
a class ab output stage using a two-diode bias network as shown in fig 1214 utilizes diodes having the same junction
a vbe multiplier is designed with equal resistances for nominal operation at a terminal current of 1 ma with half the
consider the circuit of fig for the case i 200 mua and vov 02 v rsig 100 komega rd 50 komega cgs 4 pf and cgd 05
figure shows an amplifier formed by cascading two cs stages note that the input bias voltage is not shown each of q1