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Q. A four-pole, lap-wound armature has 144 slots with two coil sides per slot, each coil having two turns. If the flux per pole is 20 mWb and the armature rotates at 720 r/min, calculate the induced voltage, given that the number of parallel paths is equal to the number of poles for lap windings.
At what velocity must a conductor 75 mm long cut a magnetic field of flux density 0.6 T if an e.m.f. of 9 V is to be induced in it? Suppose the conductor, the field and the directi
Q Consider a three-phase, full-wave bridge recti?er, as shown in Figure, with a purely resistive load R. For each diode, determine: (i) efficiency, (ii) form factor, (iii) ripple f
Explain temperature dependence of electrical resistivity and conductivity in semiconductors. The electrical conductivity of the semiconductors changes considerably with temper
To have the same value of P e , show that E b /N 0 in a coherent-ASK system has to be twice that in a coherent PSK system.
the plot of amper circuital law by using matlap?
Cointruct and simulate using multisim software a series voltage regulator to supply 1A to a load at a constant voltage of 9V. The supply voltage to regulator is 15V±10%. The minimu
Define Characteristics of Discrete Time Systems - Linear? A discrete-time system is said to be linear if it obeys the principles of superposition. That is, the response of a li
How clock signal is generated in 8086?what is the maximum internal clock frequency of 8086? Clock input 33% square wave from external clock generator .the external clock genera
Using the LM741operational amplifier build a current amplifier with the voltage gain of |A V | = 300 v/v ± = 20% . Measure all necessary parameters of the amplifier (as per delive
An oil-filled transformer has a c.m.r. of 500 kVA which allows it to run continuously in an ambient of 35°C with an oil temperature rise of 50°C. The transformer has a time constan
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