Question:
A JFET
A JFET
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JFET → voltage controlled, BJT → current controlled.
Updated On: Jul 2, 2026
- is a current controlled device
- has low input resistance
- has high gate current
- is a voltage controlled device
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The Correct Option is D
Solution and Explanation
Concept:
JFET (Junction Field Effect Transistor) works on electric field control.
Step 1: Control mechanism Gate voltage controls channel width.
Step 2: Current behavior Drain current controlled by gate voltage.
Step 3: Input characteristics Very high input resistance, negligible gate current.
Step 4: Compare with BJT BJT is current controlled, JFET is voltage controlled.
Step 5: Conclusion \[ \boxed{\text{Voltage controlled device}} \]
Final Answer: \[ \boxed{(D)} \]
Step 1: Control mechanism Gate voltage controls channel width.
Step 2: Current behavior Drain current controlled by gate voltage.
Step 3: Input characteristics Very high input resistance, negligible gate current.
Step 4: Compare with BJT BJT is current controlled, JFET is voltage controlled.
Step 5: Conclusion \[ \boxed{\text{Voltage controlled device}} \]
Final Answer: \[ \boxed{(D)} \]
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