Electrical Engineering (EE)

In ICEO, wt does the subscript ‘CEO’ mean?
  • a)
    collector to base emitter open
  • b)
    emitter to base collector open
  • c)
    collector to emitter base open
  • d)
    emitter to collector base open
Correct answer is option 'C'. Can you explain this answer?

Shrinjini answered  •  2 hours ago
The subscript ‘CEO’ means that it is collector to emitter base open. It is called as the leakage current. It occurs in a reverse bias in PNP transistor. The total current can be calculated by IC=βIB+IC.

The CT for an abrupt PN junction diode is ________
  • a)
    CT = K/(V0+VB)1/2
  • b)
    CT = K/(V0+VB)-1/2
  • c)
    CT = K/(V0+VB)1/3
  • d)
    CT = K/(V0+VB)-1/3
Correct answer is option 'A'. Can you explain this answer?

Abhishek Kumar answered  •  2 hours ago
For an abrupt PN junction diode, CT = K/(V0+VB)n. Here, n=1/2 for abrupt PN junction diode and 1/3 for linear PN junction diode. When the doping concentration of a diode varies within a small scale of area, then the diode is called as an abrupt diode.

Compute the divergence of the vector xi + yj + zk.
  • a)
    0
  • b)
    1
  • c)
    2
  • d)
    3
Correct answer is option 'D'. Can you explain this answer?

AKSHAY KUMAR answered  •  2 hours ago
Answer: d
Explanation: The vector given is a position vector. The divergence of any position vector is always 3.

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