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Why 13.8 kV?
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A 3 phase line of 4 km length delivers 4000 kW at a p.f of 0.8 lagging to a load the resistance and reactance per km of each conductor are 0.2 Ω and 0.5 Ω respectively if the voltage at the supply end is maintained at 11 kV. Calculate the received end voltage and efficiency of line.

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What is the name of chapter 13 in class 12th physics?

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Is 13.3 volts a good battery when running?
Answer : A voltage of 13.3 volts is generally a good voltage for a 12V battery when it's running, especially if the battery is fully charged. Most 12V lead-acid batteries (like car batteries) will typically ... not be in great condition and could be losing capacity. Does this match what you're seeing?...

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A motor has to exert power starting from zero and rising uniformly to 150 HP in 8 mins after which it works at constant power of 100 HP for 5 mins. The motor remains on no load for next 5 mins. The cycle again starts and repeats indefinitely. Determine suitable size of motor.

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What is the number of select lines in 8 1 multiplexer?

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A 500kVA distribution transformer having copper and iron losses of 5kW and 3kW respectively on full load. The transformer is loaded as shown below: Loading (kW) Power Factor (Lag) No. of hours 400 0.8 06 300 0.75 12 100 0.8 03 No load - 03 Calculate the all-day efficiency.

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Sketch a diagram showing interfacing of two chips of RAM having a size of 2k × 8 to the 8051 microcontroller. Write its memory map.

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A workshop measures 10m × 25m. The shop is illuminated by 24 lamps of 200 watts each. The lumen efficiency of each lamp is 15 lumens per watt. Depreciation factor is assumed to be 0.8 and a coefficient of utilization 0.5. Determine the illumination on the working plane.

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A plant consists of two 10 MVA generators of reactance 18% each and two 5 MVA generators of 12% each. All are connected to bus bar to supply a load through three step up transformers of 8 MVA each having reactance of 8%. Determine fault MVA on HV side of any one transformer.

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How to convert 8 bit binary to BCD?
Answer : To convert an 8-bit binary number to Binary-Coded Decimal (BCD), follow these steps: ### Steps to Convert 8-bit Binary to BCD: 1. **Start with the 8-bit binary number.** Example ... BCD representation for the binary number `10011011` is `0001 0101 0101`, which represents `155` in decimal....

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