Electric Circuits Which of the following has least resistivity? Mercury. Lead. Aluminium. Copper. Mercury. Lead. Aluminium. Copper. ANSWER DOWNLOAD EXAMIANS APP
Electric Circuits Image impedance can be written by using short circuit impedance(Zsc)and open circuit impedance(Zoc) as Zsc/Zoc (Zsc . Zoc)½ Zsc-Zoc Zsc+Zoc Zsc/Zoc (Zsc . Zoc)½ Zsc-Zoc Zsc+Zoc ANSWER DOWNLOAD EXAMIANS APP
Electric Circuits The frequency of EMF generated by a generator depends upon its number of poles. speed. nature of supply. both speed and number of poles. number of poles. speed. nature of supply. both speed and number of poles. ANSWER DOWNLOAD EXAMIANS APP
Electric Circuits A balanced delta connected load has an impedance of 9∠30o Ω per phase. What is the impedance per phase of its equivalent star? 3∠30o Ω. None of these 27∠30o Ω 30∠30o Ω. 3∠30o Ω. None of these 27∠30o Ω 30∠30o Ω. ANSWER DOWNLOAD EXAMIANS APP
Electric Circuits The rms value of the voltage U(t)= 3 + 4cos(3t) 4.123 V. 5 V. 7 V. {3 + 2(1.141)} V. 4.123 V. 5 V. 7 V. {3 + 2(1.141)} V. ANSWER DOWNLOAD EXAMIANS APP
Electric Circuits Number of branches of a graph should be --------- number of branches of a network less than equals to less than equals to greater than less than equals to less than equals to greater than ANSWER DOWNLOAD EXAMIANS APP
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