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Describe 74LS139 memory decoder.
The 74LS139 is a dual 2-to-4 line decoder. This contains two separate 2-to-4 line decoders - all with its address, output and enable connections.
The Pin-out of the 74LS139
Q. A 10-kVA, 200:400-V, single-phase transformer gave these test results: • Open-circuit test (LVwinding supplied): 200V, 3.2 A, 450 W • Short-circuit test (HV winding suppli
power factor improvement
L=0.0053nH, C=15µF find the operating frequency of series LC circuit. What factors decides capacitance ..
A very widely used alternative form of synchronous motor is the ' indu c tion motor'. This has the advantage that it does not require an auxiliary motor to run the rotor up t
List four sources of information which are essential to the designer of this electrical installation
Q. The inductance per unit length in H/mfor parallel plate in?nitely long conductors in air is given by L = µ 0 d/w = 4π×10 -7 d/w, where d and w are inmeters.Compute L (per unit
please send me solution
Explain RS422A standard. RS422A: 1. Date Rate: 10 Mbits per second 2. Driving capability up to 4000ft and 10 receivers 3. This is Differential standard that is- a
Thyristor The name thyristor is derived bya combination of the capital letters from thyratron and translstor. This means that thyristor is a solid state device like a
(a) Let a unit impulse of current i(t) = δ(t) be applied to a parallel combination of R = 3 and C = 1/2 F. Determine the voltage vC(t) across the capacitor. (b) Repeat (a) for
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