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A 132 kV line with 1·956 cm dia. conductors is built so that corona takes place, if the line voltage exceeds 210 kV (r.m.s.).
If the value of potential gradient at which ionisation occurs can be taken as 30 kV per cm, find the spacing between the conductors.
design a synchronous recycling mod-5 down counter that producesthesequence 100 011 010 001 000 and repeat. use j-k
determine that the total field B within the sample is one tesla. Calculate M and determine what percentage of the volume now consists of domains with magnetization parallel to the field.
Calculate by rigorous method the sending end voltage and current when the line is delivering a load of 20 MW at 0.8 p.f. lagging.
fdtd evaluation of the sar distribution in a human head near a mobile cellular phonefinite difference time domain fdtd
Suppose that a 40 MVAR capacitor bank is added to Bus 3 of the power system in Problem 11-5. What happens to the bus voltages in this power system? What happens to the apparent powers of the transmission lines?
Generic Counter with a Stop Value Say that we must design a counter that starts at x min and stops (and remains there) when x max is reached, only returning to the initial value and running again after a reset pulse is applied to the circuit. As i..
Determine the height d of cable AB so that the force in cables AD and AC is one-half as great as the force in cable AB. What is the force in each cable for this case. The flower pot has a mass of 50 kg.
A DC motor is driving a load given by TL = 2 + 0.02ωL Nm , where ωL is the speed in rad/sec. The armature resistance of the motor, Ra = 2Ω . The machine constants, kE=kT =0.4 (in SI units).
determine the transfer function of a 4th order lowpass butterworth filter with a 3-dB cutoff frequency of 3.4 kHz and passband gain=1. Design the circuit using MFB topology. Design two sections with an order of 2.
If the two resistors are held at the same physical temperature, is the effective temperature equal to the true common temperature of the resistors?
A point charge Q is located at (0,0,d) above an infiniteconducting plane that lies in the xy-plane and is maintained atground potential. Find a) the surface charge density as a functionof x and y on the conducting plane
A pull-up resistor must be used between the TTL output-CMOS input node and Vcc; the value of RP will depend on the number of CMOS gates connected to the node.
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