Which of the following materials does not have covalent bonds ?
A). Organic polymers
B). Silicon
C). Metals
D).
1. The expansion method for evaluating determinants is
2. A triac is equivalent to two SCRs ___________.
3. An important advantage of a synchronous motor over wound round induction motor is that
4. The capacitor preferred for high frequency circuits is
5. When the pointer of an analog ohmmeter reads close to zero, the resistor being measured is
6. The circuit whose properties are same in either direction is known as
8. When an SCR is turned on, the voltage across it is about ___________
9. The path of the magnetic flux in transformer should have
10. If the gate of a JFET is made less negative, the width of the conducting channel ___________