Machine-translated by Google. Questions are authored in English.
Top

Discussion

Assertion (A): Assertion: A field effect transistor gives a lower voltage gain than a bipolar device at the same current.

Reason (R): Reason: Its gate draws no current.

Select the correct answer from the options below.

  • A.A is false but R is true
  • B.Both A and R are true, but R is not the correct explanation of A
  • C.Both A and R are true, and R is the correct explanation of A
  • D.A is true but R is false

Answer: B

Both statements are true but the second does not explain the first: the lower gain follows from the square-law transfer characteristic being less steep than an exponential one, while the absence of gate current explains the high input impedance instead. Two consequences of the same device, arising from two different aspects of it, and attaching each to its own cause is exactly what this item tests.

No comment is present. Be the first to comment.
Loading…

Post your comment

Please log in or register to post a comment.