4 Difference between circuit breaker and fuse...
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4 Difference between circuit breaker and fuse...
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- 1- A). Which of the following could be used as a discharge device in an inductive AC circuit? a) resistor b) diode c) metal oxide varistor d) "a" and "c", not "b" B. What is the purpose of a discharge device used in conjunction with opening a highly inductive circuit? a) to minimize the possibility of damage to the circuits insulation as a result of a high induced voltage b) to minimize the possibility of endangering the life of the person opening the controlling switch c) to allow the magnetic field to gradually collapse, thus limiting the value of the self-induced ernf d) all of the above C. The high voltage induced by an inductor when its circuit is opened could be used constructively for a) an automotive ignition system b) an electric fence c) both "a" and "b" d) neither "a" nor "b"4) Corona discharge can also cause voltage transients on the mains power supply. This occurs when the air in the vicinity of-- ------- A) high voltage a.c , B) high voltage d.c , C) Low voltage d.c , D) Low voltage a.c. 5) The measured a.c. voltage signal is applied to a small element. This heats up and the resulting temperature rise is measured by a-- A) Thermocouple , B)Thermo meter , C) Temperature meter , D)All .write the specification of circuit breaker ? EXPLAIN IN DETAILS
- The effective voltage of alternating current is __________ times its highest or peak voltage. Select one: A. .9 B. .707 C. 100% D. E=IXRwhat are the advantages and disadvantages of fuse and circuit breaker? (in terms of their usage)Fill the blanks with suitable following terms (AND gate, Potential Transformers (PT), cathode ray oscilloscope CRO, electronic switch Current Transformers (CT), DC component, cathode ray tube (CRT), AC component, electron.gun. 1.The heart of a ............is the................. the electron beam is generated, accelerated, and deflected in accordance with the input signal. 2. Power measurements in high-voltage high current circuit can be effectively done by the use of...and.. ...in conjunction with conventional wattmeter. 3. The sig ...ose frequency is to be measured is converted into a train of pulses (Using Comparator for example), one pulse for each cycle of the signal and applied continuously to an...A 4. In Average Responding Voltmeter, the AC signal is first applied to the blocking capacitor used at the input to block any..................in the input voltage. 5. Dual Trace Oscilloscope This CRO has a single.....................whose electron beam is split into two by an…
- Shackle type insulators are used for voltage in the order of ....................... Complete the answerDescribe and briefly explain the functions of the following Electrical Components. Insulator Conductor Raceway DC Circuit AC CircuitState the main constituent elements of electrical cables, as well as the materials from which they may be made. Describe the following designations: H05VV-U 1G4 mm? and LSXAV 3x16 mm?.
- (03) AC Diode circuits. (Course: Electronic Devices and Circuit Theory) -Redraw the circuit, Assume diodes are off and Redraw, Apply KVL. -You can add //comments for a better understanding. -Please answer without abbreviation. -Make it clean and clear typing/writing. Thank you.If we increase the load than core loss and copper loss will... Decrease Increase Remain sameDraw the scheme of a high voltage fuse and list its basic components. Give short description of their function.