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Why is the "drop out" current less than the "pick up " current in a relay and why is this an important and common feature in a relay?
a motorcycle battery delivers around 10 Volts DC, at an ampacity of about 500 Amps. this voltage goes through ignition (transformer) and it delivers about 30 KV to each spark plug. What is the turn ratio (Ns/Np) and the resulting ampacity on secon..
An attractive fuel for nuclear fusion is deuterium H 1 2 which constitutes about .015% of the hydrogen in the oceans If each deuterium nucleus produces 7.4 MeV in a fusion reaction, how much energy would be released if each H 1 2 atoms in the 4 gram..
Power factor correction, Three parallel impedances in rectangular form as follows
An AC motor with impedance Z = 4.2 + j3.6 O is supplied by a 220 V, 60 Hz source. Determine the time average power delivered to the load.
Points A [at ( 3 , 6 )m] and B [at ( 8, -3 )m] are in a region where the electric field is uniform and given by E= 12i N/C. What is the electric potential difference ( Vb - Va )
The first stage is a common-emitter amplifier and the second stage is a common-collector stage. You should use one npn (2N3904) and one pnp transistor (2N3906) to design the circuit to meet the design criteria. Use the transistor datasheets to fin..
The receiver takes the three received bits and decides which bit was sent by taking the majority vote of the three bits. Find the probability that the receiver makes a decoding error.
Two amplifiers(CS) connected in cascade. The input voltage to the first stage has a source voltage Vsig and Rsig= 100KOhm. Rv=10KOhm AND IS CONNECTED TO THE DRAIN OF THE SECOND STAGE. BOTH TRANSISTORS HAVE Id=.25mA and Vov=.25V
The load on a 460-v, 60-Hz, Y-connected, balanced three phase source consists of three equal Y connected impedance of 100-j100 Ohms and three equal delta-connected impedance of 300-j300 Ohms.
A walker's cassette tape player uses four AA batteries in series to provide 6 V to the player circuit. The four alkaline battery cells store a total of 200 watt-seconds of energy. If the cassette player is drawing a constant 10 mA from the battery..
A sinusoidal message signal has a frequency of 10 Hz. The signal is the input to an FM modulator with an index of 8. Determine the bandwidth of the modulator output if a power ratio, Pr = 0.8 is required.
A semiconductor device requires n-type material; it is to beoperated at 400K. Would Si doped with 1015atoms/cm3 of arsenic be useful in this application Could Ge doped with 1015cm-3 antimony beused
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