For transistor, the current ratio ' _ d i ^2 is defined the ratio… - Vidyadip

MCQ

For transistor, the current ratio ' $\beta_{d i}{ }^2$ is defined the ratio of

A
collector current to emitter current
✓
collector current to base current
C
base current to collector current
D
emitter current to collector current

✓

Answer

Correct option: B.

collector current to base current

(b) : For a transistor dc current gain is ratio of the collector current to the base current.
$
\therefore \beta_{ dc }=\frac{I_c}{I_b}
$

Need a full question paper?

Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.

Start Generating Free

Explore more

More "M.C.Q (1 Marks)" from Semiconductor Devices→Semiconductor Devices — all question types→Physics STD 12 Science question papers→Maharashtra Board STD 12 Science question papers→Maharashtra Board question paper generator→

Similar questions

The average energy per molecule is proportional to ______

A straight wire carrying a current $(I)$ is turned into a circular loop. If the magnitude of the magnetic moment associated with it is ${ }^M M$, then the length of the wire will be

A stretched wire of length $260 cm$ is set into vibrations. It is divided into three segments whose frequencies are in the ratio $2: 3: 4$. Their lengths must be

A coil having an inductance of $\frac{1}{\pi} H$ is connected in series with a resistance of $300 \Omega$. If $20 V$ from a $200 Hz$ source are impressed across the combination, the value of the phase angle between the voltage and the current is

A galvanometer of resistance $20 \Omega$ gives a deflection of 5 divisions when 1 mA current flows through it. The galvanometer scale has 50 divisions. To convert the galvanometer into a voltmeter of range 25 volt, we should connect a resistance of

Two small drops of mercury each of radius ' $R$ ' coalesce to form a large single drop. The ratio of the total surface energies before and after the change is

A galvanometer of resistance $30 \Omega$ is connected to a battery of emf $2 V$ with $1970 \Omega$ resistance in series. A full scale deflection of 20 divisions is obtained in the galvanometer. To reduce the deflection to 10 divisions, the resistance in series required is

If a Carnot refrigerator works between $250 K$ and $300 K$, its coefficient of performance $=$

The radius of gyration k for a rigid body about a given rotation axis is given by

The path length of oscillation of a simple pendulum of length 1 meter is $16 cm$. Its maximum velocity is $\left(g=\pi^2 m / s ^2\right)$