11
Figure 2D. —Junction FET.
IN ANSWERING QUESTION 2-10, REFER
TO FIGURE 2E.
2-10. With the negative lead of an ohmmeter
attached to the gate and the positive lead
attached to the source, which of the
JFETs in figure 2D would be good if the
meter shows infinity?
1. P-channel
2. N-channel
3. Both 1 and 2 above
4. Neither 1 or 2
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INTENTIONALLY.
Figure 2E. —MOSFET (depletion/enhancement type)
and equivalent circuit.
IN ANSWERING QUESTIONS 2-11 AND
2-12, REFER TO FIGURE 2E.
2-11. When measuring resistance between the
drain and source of a
depletion/enhancement type of
MOSFET, what readings should you
expect?
1. 15 ohms in one direction and infinity
in the other direction
2. The same value of resistance in both
directions
3. A short in one direction and infinity
in the other
4. Infinite reading regardless of meter
lead polarities
2-12. When measuring resistance between the
gate, source, and drain of a
depletion/enhancement type of MOSFET
with the negative lead attached to the
gate, what readings should you expect?
1. Both readings should be infinity
2. Both readings should be between 15
ohms and 100 ohms
3. Both readings should be
approximately 1,000 ohms
4. Both readings should be less than 10
ohms
