Question is ⇒ A UJT exhibits negative resistance characteristics when, Options are ⇒ (A) Current is less than valley current, (B) Current is less than peak current, (C) Current is more than peak current but less than valley current, (D) None of the above, (E) , Leave your comments or Download question paper.

Question is ⇒ A UJT exhibits negative resistance characteristics when, Options are ⇒ (A) Current is less than valley current, (B) Current is less than peak current, (C) Current is more than peak current but less than valley current, (D) None of the above, (E) , Leave your comments or Download question paper. Previous question Next question


Q1.	A UJT exhibits negative resistance characteristics when
A.	Current is less than valley current [Wrong Answer]
B.	Current is less than peak current [Wrong Answer]
C.	Current is more than peak current but less than valley current [Correct Answer]
D.	None of the above [Wrong Answer]
View Answer 4 -3 Explanation:- Answer : C 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 chip 8257 is a
programmable interrupt controller
programmable DMA controller
programmable peripheral interface
none of the above

⇒ Ohm's law is valid for
dc voltage and current
ac voltage and current
all voltages and current
dc and ac voltages and currents

⇒ A binary ladder network D/A converter requires
resistors of one value only
resistors of many different values
resistors of two different values
none of the above

⇒ The depletion type MOSFET can operate in
depletion mode only
enhancement mode only
depletion or enhancement mode
neither depletion nor enhancement mode

⇒ For a microprocessor system using IO-mapped IO the following statement is NOT true
memory space available is greater
not all data transfer instructions are available
IO and memory address spaces are distinct
IO address space is greater

⇒ Consider the following statements about 8085

The instruction LDA uses direct addressing mode.
The instruction MVI uses direct addressing mode.
The instruction MVI uses immediate addressing mode.
The instruction LDA uses immediate addressing mode.

Which of the above are correct?
1 and 3 only
3 and 4 only
1 and 2 only
2 only

⇒ An RC series circuit has R = 20 Ω and X_C = 20 Ω. Then Z =
40 Ω
28.28 Ω
20 Ω
1 Ω

⇒ Which of the following microphones is the cheapest?
Moving coil
Condenser
Ribbon
Carbon

⇒ Silicon and germanium are elements in the
second column of periodic table
third column of periodic table
fourth column of periodic table
fifth column of periodic table

⇒ Each of the following statements regarding frequency modulation is true except
amplitude of the modulated wave remains the same as that of carrier wave
the amount of variation of deviation from the original carrier frequency is determined by the frequency of the modulating signal
the rate at which the frequency of modulated wave varies is determined by the frequency of the modulating signal
frequency of modulated wave increases as the signal voltage increases and vice-versa

⇒ For a parallel two wire line with both conductors touching each other, the characteristic impedance is about
300 Ω
200 Ω
80 Ω
24 Ω

⇒ Which are the pending interrupts?
5.5
6.5
7.5
None

⇒ Which one of the following devices is not used as the controller in a stabilizer?
DIAC
TRIAC
SCR
Power transistor

⇒ When the light falling on a photodiode increases, the reverse minority current
increases
increases or decreases
decreases
remains the same

⇒ Two CE stages are coupled through a capacitor. To calculate the quiescent base current of the two transistors, the capacitor is treated as
open circuit
short circuit
neither (a) nor (b)
either (a) or (b)

⇒ Which of the following power amplifiers has highest efficiency?
Class A
Class AB
Class B
Class C

⇒ In which of the following schemes are several channels interleaved and transmitted together?
TDM
FDM
group
subgroup

⇒ A Schottky diode clamp is used along with switching BJT for
reducing the power dissipation
reducing the switching time
increasing the value of β
reducing the base current

⇒ If f(t) is an even function, the coefficients F_n in the exponential form of Fourier series
are real
are imaginary
are complex
may be real or imaginary

⇒ In a P-N-P transistor, with normal bias, the emitter junction
is always reverse biased
offers very high resistance
offers a low resistance
remains open

⇒ When a 1 V increase in gate voltage changes the drain current 10 mA in an FET, its g_m equals
10 μμ
100 μμ
1000 μμ
10000 μμ

⇒ A chopper
converts constant voltage dc into ac and then into variable voltage dc
converts constant voltage dc into variable voltage dc directly
converts ac of one frequency into ac of another frequency
converts ac to dc

⇒

Assertion (A): To add 8 bit words, two 1C 74181 can be cascaded.

Reason (R): In 1C 74181 a sum greater than 15 leads to high carry out.

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

⇒

Assertion (A): In an op-amp the voltage gain and band width can be adjusted as per requirement

Reason (R): Large value capacitor can also be fabricated on a chip

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

⇒

Assertion (A): Microprocesspr 8085 has six 8 bit registers B, C, D, E, H L.

Reason (R): B - C, D - E, H - L may be combined to form register pairs to hold 16 bits data.

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

⇒ What is the purpose of DMA facility in microprocessor based system?
To increase the speed of data transfer between the mP and the I/O devices
To increase the speed of data transfer between the mP and the memory
To increase the speed of data transfer between the memory and the I/O devices
To improve the reliability of the system

⇒ The following circuit diagram resembl
logic 0
logic 1
f(A, B, C) = Σm(0, 1, 4, 6, 7)
none

⇒ Available multiplexer IC package can have a maximum of 8 inputs.
TRUE
FALSE

⇒ In the given fi
42737
42739
2
1

⇒ The current in a circuit is measured using a 150 : 1 CT If the ammeter reads 0.6 A, the circuit current is
250 A
90 A
156 A
144 A