Mutual GMD an abbreviation for mutual geometrical mean distance is the geometrical mean of the distances form one conductor to the other. As evident there must be between the largest and smallest such distance. Mutual-GMD simply indicates the equivalent geometrical spacing. There are three important causes of interests in reference to mutual GMD that are … Read more
Self-geometrical mean distance abbreviated as self-GMD plays vital role in simplifying the inductance calculations in the case of multiconductor arrangements in transmission lines. Symbol D with subscript s is used to denote self-GMD (Ds). The mathematical equation for inductance per conductor per metre is: Inductance per conductor per meter = 2 * 10-7 * (1/4) … Read more
Electrical Engineering MCQs on Measurement – Electrical Measurement MCQs Two voltmeters have same range 0-400 V. The internal impedances are 30,000 Ohms and 20,000 Ohms. If they are connected in series and 600 V is applied across them, the readings are respectively Correct answer: 2. 360 V and 240 V
Electrical Engineering MCQs on Measurement – Electrical Measurement MCQs The current coil of wattmeter is connected to the CT of R-phase. The potential coil is connected across Y and B phases. The wattmeter will measure Correct answer: 4. Reactive power of R phase
Electrical Engineering MCQs on Measurement – Electrical Measurement MCQs The deflecting torque in moving coil instrument is proportional to Correct answer: 1. Current
Electrical Engineering MCQs on Measurement – Electrical Measurement MCQs The wave that has the least form factor Correct answer: 3. Square wave
Electrical Engineering MCQs on Measurement – Electrical Measurement MCQs The deflecting torque in a ballistic galvanometer is proportional to Correct answer: 4. The current through coil
Electrical Engineering MCQ on Electrical Measurements Which of following meter will be most sensitive Which of following meter will be most sensitive Correct answer: 4. 1 µA In a function generator, the output waveform of integrator is In a function generator, the output waveform of integrator is Correct answer: 4. Triangular Ryall crest voltmeter is … Read more
Electrical Engineering MCQs on SCR – SCR MCQs Part 3 The SCR is made of The SCR is made of: Correct answer: 3. Silicon If firing angle in SCR circuit is increased, what happens to output If firing angle in SCR circuit is increased, what happens to output: Correct answer: 1. Will decrease When SCR … Read more
A synchronous condenser is an over-excited synchronous motor that is running on no load condition. A synchronous motor takes a leading current when run over-excited and, as a result behaves as a capacitor. When such a motor is connected in parallel with the power supply, it takes a leading current which partly neutralizes the lagging … Read more