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two long parallel conductors are spaced 12 cm between centres if they carry 100 a and 75 a respectively calculate the
a moving coil meter has a coil of 60 turns wound on to a former of effective length 225 mm and diameter 15 mm if the
the coil of a moving coil meter is wound with 75 turns on a former of effective length 25 cm and diameter 2 cm the
a shunt generator supplies a current of 85 a at a terminal pd of 380 v calculate the generated emf if the armature and
the waveform displayed on an oscilloscope is as shown in fig 640 the timebase is set to 100 muscm and the y-amp is set
for each of the following alternating quantities determinea the amplitude and rms value andb the frequency and periodi
write down the standard expression for a voltage of rms value 45 v and frequency 15 khz hence calculate the
a sinusoidal voltage is generated by an 85 turn coil of dimensions 20 cm by 16 cm the coil is rotated at 3000 revmin
a sinusoidal current has a peak-to-peak value of 15 ma and a frequency of 100 hza plot this waveform to a base of time
1 a coil is rotated between a pair of poles calculate the frequency of the generated emf if the rotational speed isa
a substation operating at 33kv is divided into sections a and b section a consist of three generators 15mva each having
a what is the difference between a primitive cell and a unit cell what is the utility of both conceptsb what is the
a simple voltage stabiliser circuit is shown in fig 920 the zener diode is a 75 v 500 mw device and the supply voltage
the dielectric of a 20 muf capacitor has a resistance of 65 m omega this capacitor is fully charged from a 120 v dc
define the time constant of a capacitor-resistor series circuit such a circuit comprises a 50 mu f capacitor and a
a 5 h inductor has a resistance r ohm this inductor is connected in series with a10 omega resistor across a 140 v dc
an inductor of negligible resistance and of inductance 025 h is connected in series with a 15 komega resistor across a
a 150 mh inductor of resistance 50 omega is connected to a 50 v dc supply determinea the initial rate of change of
a 47 mu f capacitor is connected in series with a 39 komega resistor across a 24 v dc supply calculatea the circuit
a generator produces an armature current of 50 a when generating an emf of 400 v if the terminal pd is 390 v calculatea
consider the following conduction band energy e vs wave vector kx dispersion relationa which energy valley has the
a what do we mean by deep versus shallow traps which are more harmful for semiconductor devices and why what is an
a does mobility have any meaning at very high field whyb how do you measure mobility and carrier
consider two si p-n junction diodes one long and one short contacts within a diffusion length of the depletion region
we wish to estimate the d-c power dissipated in a gaas gunn diode assume that the diode is 5 jxm long and operates in