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Q. A 75-kVA transformer has an iron loss of 1 kW and a full-load copper loss of 1 kW. If the transformer operates on the following load cycle, determine the all-day efficiency:
8 hours full load at unity power factor
8 hours no load
8 hours one-half full load at unity power factor
Bonding Forces and Energy Bands in Solids Electrons are controlled to sets of discrete energy levels in atoms, with large gaps among them in which no energy state is obta
For the circuit of Fig: (i) using Kirchoff's Laws , find all the currents (ii) determine the voltage across each resistor and check that all loops comply with KVL (iii
determine & sketch convolution y(n) of signal X(n)=an , -3 0 , elsewhere H(n)=1 , 0 0 , elsewhere
Q. Briefly discuss about ‘Cascaded Amplifier' using a diagram? Amplifiers are cascaded when the output of the first is the input to the second. The combined gain is whe
The transformer of Example is supplying full load (i.e., rated load of 50 kVA) at a rated secondary voltage of 240 V and 0.8 power factor lagging. Neglecting the exciting current o
Q. Explain the action of a pn-junction with bias. Consider both the forward bias and the reverse bias, and use sketches wherever possible.
When the PLC is in the RUN mode it will switch ON the conveyer so it will run continuously. This project is divided into four outcomes: (a) Detect block on entry, close
Design a DC motor control system to run the 48V DC motor at 40rpm up to max load of the motor. You are responsible for designing the control of a 24V supply along with the speed s
1. Design four (4) different 5 volt DC power supplies to operate from 230 volts AC. The four power supplies are to have the same full wave rectifier with capacitive filte
What is memory mapping? The assignment of memory addresses to several registers in a memory chip is known as memory mapping.
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