Question is ⇒ For BJT transistor. The maximum power dissipation is specified as 350 mW if ambient temperature is 25°C. If ambient temperature is 60°C the maximum power dissipation should be limited to about, Options are ⇒ (A) 100 mW, (B) 250 mW, (C) 450 mW, (D) 600 mW, (E) , Leave your comments or Download question paper.

Question is ⇒ For BJT transistor. The maximum power dissipation is specified as 350 mW if ambient temperature is 25°C. If ambient temperature is 60°C the maximum power dissipation should be limited to about, Options are ⇒ (A) 100 mW, (B) 250 mW, (C) 450 mW, (D) 600 mW, (E) , Leave your comments or Download question paper. Previous question Next question


Q1.	For BJT transistor. The maximum power dissipation is specified as 350 mW if ambient temperature is 25°C. If ambient temperature is 60°C the maximum power dissipation should be limited to about
A.	100 mW [Wrong Answer]
B.	250 mW [Correct Answer]
C.	450 mW [Wrong Answer]
D.	600 mW [Wrong Answer]
View Answer 1 -3 Explanation:- Answer : B Discuss it below : !! OOPS Login [Click here] is required to post your answer/result Help other students, write article, leave your comments

Previous question Next question

Also Read Similar Questions Below :

⇒ The total number of fundamental products of three variables is
3
5
8
16

⇒ A dual trace CRO has
one electron gun
two electron guns
one electron gun with one two pole switch
two electron guns with one two pole switch

⇒ For most metals, Fermi level E_F is less than
0.1 eV
2 eV
5 eV
10 eV

⇒ Consider the following mnemonics

MOV
ADD
LXI

Which of the above are valid for 8085?
1 and 2 only
1 only
1, 2 and 3
1 and 3 only

⇒ In a backward wave oscillator the efficiency
is much higher than in TWT
is much lower than in TWT
is almost the same as in TWT
either (a) or (b)

⇒ The maximum power that can be transferred to the load is resistor R_L from the voltage source in the figur
1 W
10 W
0.25 W
0.5 W

⇒ In a ratio detector
the linearity is worse than in a phase discriminator
the output is twice that obtainable from a similar phase discriminator
stabilization against signal strength variations is provided
the circuit is the same as in a discriminator, except that the diodes are reversed

⇒ An SBS can conduct is one direction only.
TRUE
FALSE

⇒ Two port network is said to be symmetrical if
Δ_h = 1
Z₁₁ = Z₂
A = Δ
all

⇒ For the logic circuit of the given figure the simplified Boolean expressio
Y = AB + A C
Y = (AB) (A C)
Y = ABC
Y = A B + A C

⇒ For the collector-feedback amplifier shown below the voltage gain A_v will be _________
-113.07
-103.07
-107.07
-93

⇒ Electrical conductivity of metals expressed in ohm^-1 m^-1 is of the order of
10¹⁰
10⁵
10^-4
10^-6

⇒ A moving coil instrument has a resistance of 0.5 Ω and a full scale deflection of 0.1 A. To convert it into an ammeter of 0-10 A the shunt resistance should be
0.004 Ω
0.005 Ω
0.05 Ω
0.1 Ω

⇒ A data signal having frequency components from dc to 50 Hz is to be sent through pulse code modulation using an 8 digit code. The minimum carrier channel bandwidth is
1 kHz
2 kHz
4 kHz
8 kHz

⇒ Satellite communication uses frequencies in the range of
3 to 6 GHz
3-10 MHZ
10-50 GHz
100-200 GHz

⇒ The following circuit resonate
0.5 Hz
5 Hz
1 rad/sec
0.5 rad/sec

⇒ A single phase cycloconverter feeds a resistance heating load. The heating power is provided by
only the fundamental component of output wave
only higher harmonics in the output wave
both fundamental and higher harmonics in the output wave
either (a) or (b)

⇒ The advantage of LVDT over inductive bridge type transducer is that
it gives high output for small changes in core position
it can be used over a temperature range of - 265°C to 600°C
it can measure displacement of moving object
the error due to stray magnetic field is less

⇒ In the circuit of figure, the source supplies, 2.25 mA. The value of R mus
5 Ω
3 Ω
1.5 Ω
0.5 Ω

⇒ The programming language in which Excel records the macro code is
basic
visual basic
video basic
basic 2

⇒ In 8085 microprocessor, which of the following interrupts has the highest priority?
RST 5.5
RST 7.5
TRAP
INTR

⇒ In figure the dc load line will meet the y and x axis respectivel
20 mA and 30 V
15 mA and 20 V
25 mA and 40 V
10 mA and 20 V

⇒ In a TV receiver the video IF amplifier provides a gain of about
5 dB
20 dB
60 dB
200 dB

⇒ In figure, V₁ = 40 V when R = 10 Ω, if R = 0, V₂ wil
40 V
30 V
20 V
10 V

⇒ A loudspeaker transformer has a turns ratio of 20 : 1. The speaker impedance is 20Ω. Primary impedance of transformer is
10 K
8 K
20 K
0.5 K

⇒ The memory segment registers in 8086 are denoted by
AS, BS, CS, DS
BS, CS, SS, ES
CS, DS, SS, ES
DS, ES, FS, SS

⇒ To couple a coaxial line to a parallel wire line it is best to use
slotted line
balun
directional coupler
λ/4 transformer

⇒ If the ratio p(s)/q(s) represents a transfer function then
the degree of p(s) may be as small as zero, independent of degree of q(s)
the degree of p(s) and q(s) must be equal
the degrees of p(s) and q(s) must not be equal
the degrees p(s) and q(s) must differ by at least two

⇒ An FM radio receiver which is tuned to a 91.6 MHz broadcast station may receive an image frequency of __________ MHz.
102.3
113
70.2
80.9

⇒

Assertion (A): The output voltage of an inverter can be controlled by PWM technique

Reason (R): In a current source inverter the input current is constant.

Both A and R are correct and R is correct explanation of A
Both A and R correct but R is not correct explanation of A
A is correct but R is wrong
A is wrong but R is correct