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when a potential difference of 10 v is applied to a coil of copper wire of mean temperature 20 degc a current of 10 a
questiona 230 v lamp is rated to pass a current of 026 a calculate its power output if a second similar lamp is
questionfigure shows a network with two sources of emfcalculate the voltage v1 and the emf
similar to impedance resistance and reactance which are measured in ohms s2 admittance conductance and susceptance are
a series resonant circuit is used to tune in stations in the am broadcast band if a station broadcasting on 870 khz is
question 1determine v1 i1 v2 i2 for circuits shown belowshow your workquestion 2for the circuits in problem 1 find the
to eliminate an interfering frequency of 52 mhz design a series resonant circuit to be inserted as a shunt you have
in the fm radio band which spans the frequencies from 88 mhz to 108 mhz stations must be separated by 020 mhz to avoid
parallel resonant circuits are used to select frequencies because the voltage and impedance peak at resonance calculate
it is desired to run the motor in the previous problem with a power factor of unity to achieve this a capacitor c is
a motor is connected to a 120 v rms 60 hz line the motor is rated at 2 kva and operates with a power factor of 08a find
the ratio of resistances of a 100 w 220 v lamp to that of a 100 w 110 v lamp will be at their respective voltages
calculate the forward bias needed at room temperature on a germanium pnjunction to give a current of 10 ma use a
provide support for the following circuits activitynbspsecond activityintroduction to kirchhoffs voltage law kirchhoffs
the reverse saturation current for a silicon pn-diode at room temperature 293 k is io 1 na 10-9a if the diode carries
design a half-wave rectifier with capacitor filter to supply 40 vdc to a load of rl 2 komega assume the rectifier is
a wire 25 m long is bent into a square an current of 100 a flowing through the wire will produce a magnetizing force at
if p is the power of a star connected system then what will be power of an equivalent delta connected
a half-wave rectifier having a resistance load of 1103 ohm an ac voltage of 325 v peak value and the diode has a
who was introduced the right hand rule for determining the direction of the induced emf where is rule is used
a sinusoid generator output voltage is acoswt the output is sampled randomly the sampled output is a random variable x
an amplifier has an open-circuit voltage gain of 1500 an input impedance of 3 komega and an output impedance of 300
find the number of poles required when the frequency is 50hz and speed of the induction motor is 500
in an audio system the microphone produces a voltage of 10 mv which is connected by a cable to an amplifier with a
how many coulombs of charge flow through a circuit carrying a current of 10 a in 1