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In a power system, which of the following is/are critical clearance time of a fault related to? 1. Transient reactance 2. Sub-transient reactance 3. Reactive power limit 4. Transient stability limit
With 100% series compensation of the transmission lines, which of the following effects are observed? (i) Low transient voltage (ii) High transient current (iii) The current is series resonant at power frequency
With 100% series compensation of the transmission lines, which of the following effects are not observed? (i) Low transient voltage (ii) High transient current (iii) The current is series resonant at power frequency
If a parallel RLC circuit is excited with a source of 8v, 50 Hz and the circuit has an inductor of 1mH, capacitor of 1µF and a resistor of 50Ω, then the power loss that occurs in the circuit is:
In comparing the operation of the half-controlled 2-pulse circuit with that of the fully-controlled circuit, which of the following statements are evident? 1. Since half the thyristors are replaced by diodes, a half-controlled converter costs less than a fully-controlled converter. 2. Due to the freewheeling action with a half-controlled bridge-circuit power factor is improved in half-controlled converters. 3. The AC supply current is more distorted due to its zero periods with the half-controlled circuit, compared to a fully-controlled bridge circuit. Select the correct answer using the code given below :
In the following 8085 assembly language program, assume that the carry flag is initially reset. What is the content of the accumulator after the execution of the program? MVI A, O4H RRC MOV B, A RLC RLC ADD B RRC
In a series RLC circuit, the phase difference between the voltage across the resistor and the current in the circuit is?
In a series RLC circuit, the phase difference between the voltage across the capacitor and the current in the circuit is?
In a series RLC circuit, the phase difference between the voltage across the inductor and the current in the circuit is?
In a series RLC circuit, the phase difference between the current in the circuit and the voltage across the resistor is?