Electric Circuits A current of 4 A flows in an ac circuit when 100 V dc is applied to it whereas it takes 250 v ac to produce the same current the power factor of the circuit is 1. 0.4. 0.85. 10. 1. 0.4. 0.85. 10. ANSWER DOWNLOAD EXAMIANS APP
Electric Circuits Two identical resistors are first connected in parallel then in series. The ratio of resultant resistance of the first combination to the second will be 2. 0.25. 0.5. 4. 2. 0.25. 0.5. 4. ANSWER DOWNLOAD EXAMIANS APP
Electric Circuits The resistance of a strip of copper of rectangular cross section is 2 Ω. A metal of resistivity twice that of a copper is coated on its upper surface to a thickness equal to that of copper strip. The resistance of composite strip will be 3 / 2 Ω. 6 Ω. 4 / 3 Ω. 3 / 4 Ω. 3 / 2 Ω. 6 Ω. 4 / 3 Ω. 3 / 4 Ω. ANSWER DOWNLOAD EXAMIANS APP
Electric Circuits A series circuit consists of R = 20 Ω, L = 20 mH, and AC supply 60 V with f = 100 Hz. The phase angle of current in respect of supply voltage will be 20.2o. 40.4o. 28.8o. 32.1o. 20.2o. 40.4o. 28.8o. 32.1o. ANSWER DOWNLOAD EXAMIANS APP
Electric Circuits What is form factor? Average value / Peak value. Instantaneous value / Average value. R.M.S. value / Average value. Average value / R.M.S. value. Average value / Peak value. Instantaneous value / Average value. R.M.S. value / Average value. Average value / R.M.S. value. ANSWER DOWNLOAD EXAMIANS APP
Electric Circuits To obtain wide bandwidth, network is designed with which of the following? Unity Q factor Zero Q factor Low Q factor High Q factor Unity Q factor Zero Q factor Low Q factor High Q factor ANSWER DOWNLOAD EXAMIANS APP
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