Which of the following statements are correct? 1. BJT have + Ve temperature coefficient 2. diodes are connected in series to increase the Blocking voltage capability 3. The Input power factor of controllers which varies with delay angle is generally poor, especially at the low o/p range

Which of the following statements are correct? 1. BJT have + Ve temper

1.	Which of the following statements are correct? 1. BJT have + Ve temperature coefficient 2. diodes are connected in series to increase the Blocking voltage capability 3. The Input power factor of controllers which varies with delay angle is generally poor, especially at the low o/p range
A.	1 and 2 only
B.	2 and 3 only
C.	1 and 3 only
D.	1, 2 and 3
Answer» C. 1 and 3 only

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Which of the following statements are correct? 1. BJT have + Ve temperature coefficient 2. diodes are connected in series to increase the Blocking voltage capability 3. The Input power factor of controllers which varies with delay angle is generally poor, especially at the low o/p range

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Which of the following statements are correct?
1. BJT have + Ve temperature coefficient
2. diodes are connected in series to increase the Blocking voltage capability
3. The Input power factor of controllers which varies with delay angle is generally poor, especially at the low o/p range