Question:
Which of the following is unipolar transistor?
Which of the following is unipolar transistor?
Show Hint
FET: voltage-controlled device; BJT: current-controlled device.
Updated On: Apr 23, 2026
- p-n-p transistor
- n-p-n transistor
- field effect transistor
- point contact transistor
Show Solution
Verified By Collegedunia
The Correct Option is C
Solution and Explanation
Step 1: Understanding the Concept:
Unipolar transistor conducts current using majority carriers only (either electrons or holes).
Step 2: Detailed Explanation:
Field Effect Transistor (FET) is unipolar: JFET and MOSFET use only one type of charge carrier.
BJT (bipolar) uses both electrons and holes (p-n-p or n-p-n).
Point contact transistor is also bipolar.
Step 3: Final Answer:
Thus, FET is unipolar transistor.
Unipolar transistor conducts current using majority carriers only (either electrons or holes).
Step 2: Detailed Explanation:
Field Effect Transistor (FET) is unipolar: JFET and MOSFET use only one type of charge carrier.
BJT (bipolar) uses both electrons and holes (p-n-p or n-p-n).
Point contact transistor is also bipolar.
Step 3: Final Answer:
Thus, FET is unipolar transistor.
Was this answer helpful?
0
0
Top MET Physics Questions
- A coil of 100 turns and area $2 \times 10^{-2}m^2 $ is pivoted about a vertical diameter in a uniform magnetic field and carries a current of 5A. When the coil is held with its plane in north-south direction, it experiences a couple of 0.33 Nm. When the plane is east-west, the corresponding couple is 0.4 Nm, the value of magnetic induction is [Neglect earth's magnetic field]
- Radiation, with wavelength 6561 $?$ falls on a metal surface to produce photoelectrons. The electrons are made to enter a uniform magnetic field of $3 \times 10^{-4} T$. If the radius of the largest circular path followed by the electrons is 10 mm, the work function of the metal is close to :
- In intrinsic semiconductor at room temperature number of electrons and holes are
- A rope of mass $0.1\, kg$ is connected at the same height of two opposite walls. It is allowed to hang under its own weight. At [he contact point between the rope and the wall, the rope makes an angle $ \theta =10^{\circ} $ with respect to horizontal. The tension in the rope at its midpoint between the walls is
- At great distances from an electric dipole, the electric field strength due to the dipole varies with the distance as
View More Questions
Top MET Magnetic Force Questions
- The magnetic field at the center of a circular current-carrying loop of radius $R$ is $B$. The field at a point on the axis at a distance $R$ from the center is:
- The magnetic moment of a transition metal ion is \( \sqrt{15} \,\text{BM} \). Therefore, the number of unpaired electrons present in it is
- A copper wire of diameter 1.6 mm carries a current I. The maximum magnetic field due to this wire is \(5 \times 10^{-4} \, T\). The value of I is :
- The force per unit length between two parallel current carrying straight conductors separated by \(2d\) is given by the formula:
- Two parallel conductors A and B of equal length carry currents i and 10 i, respectively, in the same direction. Then
View More Questions
Top MET Questions
- A coil of 100 turns and area $2 \times 10^{-2}m^2 $ is pivoted about a vertical diameter in a uniform magnetic field and carries a current of 5A. When the coil is held with its plane in north-south direction, it experiences a couple of 0.33 Nm. When the plane is east-west, the corresponding couple is 0.4 Nm, the value of magnetic induction is [Neglect earth's magnetic field]
- $\int\limits_{0}^{8}| x -5| d x$ is equal to
- Radiation, with wavelength 6561 $?$ falls on a metal surface to produce photoelectrons. The electrons are made to enter a uniform magnetic field of $3 \times 10^{-4} T$. If the radius of the largest circular path followed by the electrons is 10 mm, the work function of the metal is close to :
- In intrinsic semiconductor at room temperature number of electrons and holes are
- Which of the following product is formed in the reaction $ CH_3MgBr {->[(i)CO_2][(ii)H_2O]} ? $
View More Questions