M circles are symmetrical with respect to
A). Real and imaginary axis
B). M = 1 straight line and real axis
C). M = 1 straight line and imaginary axis
D). M = 1 straight line
2. Which of the following statements is not necessarily correct for open control system ?
3. A characteristic property of crystal is its periodicity of structure.
5. The expansion method for evaluating determinants is
7. In D.C. generators the pole shoes are fastened to the pole core by
8. To prevent a DC return between source and load, it is necessary to use
9. A capacitor of 2,000 pF is greater than
10. Average value of a sine wave is 0.707 times the peak value.