In semiconductors upon increasing temperature the conductivity

1.	In semiconductors upon increasing temperature the conductivity
A.	increases
B.	decreases
C.	haphazard
D.	remains constant
Answer» B. decreases

Discussion

No Comment Found

Related MCQs

A musician using an open flute of length 50 cm produces second harmonic sound waves. A person runs towards the musician from another end of a hall at a speed of 10 km/h. If the wave speed is 330 m/s, the frequency heard by the running person shall be close to:
If the argument 'ωt' of the periodic function f(t) = A cos(ωt + φ) is increased by integral multiple of ______ radians, the value of the function remainsthe same.
A simple pendulum of length L is placed between the plates of a parallel plate capacitor having electric field E, as shown in figure. Its bob has mass m and charge q. The time period of the pendulum is given by:
Oscillation of a particles is prescribed by the equation x = 3cos (0.25 πt), where is the time in seconds. The time taken by the particle to move from position of equilibrium to maximum displacement is
A pendulum clock be taken from the earth to a revolving artificial satellite, it will:
If 'x' is the displacement of a particle performing simple harmonic motion, then "kx2/2" is equal to its ______________ energy.
A resonance tube is old and has jagged end. It is still used in the laboratory to determine velocity of sound in air. A tuning fork of frequency mark near the open end of the tube. The 512 Hz e produces first resonance when the tube is filled with water to a mark 11 cm below a reference experiment is repeated with another fork of frequency 256 Hz which produces first resonance when water reaches a mark 27 cm below the reference mark. The velocity of sound in air, obtained in the experiment is close to
______________ motion is the projection of uniform circular motion on a diameter of the circle in which the latter motion takes place.
In the simple harmonic motion x = √2 sin(ωt – π/4), the phase constant can be shown as?
A simple pendulum is made of a string of length l and a bob of mass m, is released from a small angle θ0. It strikes a block of mass M, kept on a horizontal surface at its lowest point of oscillations, elastically. It bounces back and goes up to an angle θ1. Then, M is given by

In semiconductors upon increasing temperature the conductivity

Discussion

No Comment Found

Related MCQs

Reply to Comment