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1. A conductor, when placed at right angles to a magnetic field of density 700 mT, experiences a force of 20 mN, when carrying a current of 200 mA. Calculate the effective length of the conductor.
2. A conductor, 0.4 m long, lies between two pole pieces, with its length parallel to the pole faces. Determine the force exerted on the conductor, if it carries a current of 30 A, and the flux density is 0.25 T.
If the starting current is to be restricted to 290 A, calculate the external resistance to be added in the motor circuit and the starting torque.
The base width of a npn BJT at a temperature of 300K is 4μm. If the time it takes for an electron to diffuse a distance d is t=d2/Dn, where D is the diffusion coefficient.Calculate α and ß for this BJT. Assume typical electron mobilities and the w..
Find the mathematical expressions for the transient behavior of the voltage vC and the current iC following the closing of the switch.
For a chip area with area 2cm x 2cm in a 180nm logic technology, what is the approximate area of the same chip when ported to a 32nm logic technology.
The dynamic resistance for rectifying junctions is given by Rdyn =(dI/dV)-1. For a junction diode having reverse saturation current I0=10-9A, Calculate Rdyn when the diode is biased at V=VF=0.7V, then V=VR=0.5V.
Discuss the analogy between the magnetic vector potential due to an infinitesimal current element and the electric scalar potential due to a point charge.
Find the output samples for mT = -2T; -T; 0; T; and 2T.
A voltage source V = 119
How would you go about identifying the powerful people within your organization? What indicators would you look for? From what types of problems would these indicators suffer?
The carry increment adder in Figure 11.26(b) with variable block size requires five stages of valency-2 group PG cells for 16-bit addition. How many stages are required for 32-bit addition? For 64-bit addition?
Write down the Y-bus of the system and build this power system in PowerWorld Simulator and For the power system, find the VAR rating of a shunt capacitor bank at bus 2 that increases V2 to 0.95 p.u.
Find Norton equivalent circuit for network external to the resistor R for each network of given figure. - Find Thévenin equivalent circuit for the network external to the resistor R in each of the networks of given figure.
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