Question is ⇒ Figure shows an 8-bit LED display. A light circle means that a LED is ON (binary 1) and a dark circle means a LED is OFF (binary 0). What is the decimal equivalent of the binary number displa, Options are ⇒ (A) 100, (B) 121, (C) 144, (D) 172, (E) , Leave your comments or Download question paper.

Question is ⇒ Figure shows an 8-bit LED display. A light circle means that a LED is ON (binary 1) and a dark circle means a LED is OFF (binary 0). What is the decimal equivalent of the binary number displa, Options are ⇒ (A) 100, (B) 121, (C) 144, (D) 172, (E) , Leave your comments or Download question paper. Previous question Next question


Q1.	Figure shows an 8-bit LED display. A light circle means that a LED is ON (binary 1) and a dark circle means a LED is OFF (binary 0). What is the decimal equivalent of the binary number displa
A.	100 [Wrong Answer]
B.	121 [Wrong Answer]
C.	144 [Wrong Answer]
D.	172 [Correct Answer]
View Answer 1 -2 Explanation:- Answer : D 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 :

⇒ In a low power factor wattmeter, compensation for pressure coil current is provided.
TRUE
FALSE

⇒ In a CE amplifier circuit the emitter by pass capacitor is remove. The ac output voltage
increases
remains the same
increases or decreases
decreases

⇒ In Z_RC (s) = 0 at s = ∞, the last element in first Cauer form is
R
C
R and C in series
R and C in parallel

⇒ A discrete random variable X takes values from 1 to 5 with probabilities as shown in the table. A student calculates the mean of X and 3.5 and her teacher calculates the variance of X as 1.5. Which of the following statements is t
Both the student and the teacher are right
Both the student and the teacher are wrong
Both the student is wrong but the teacher is right
The student is right but the teacher is wrong

⇒ Race condition occurs in
synchronous circuit
asynchronous circuit
combinational circuit
all the Digital circuit

⇒ The ROC of sequence x[n] = (0.8)ⁿ ∪[n] + (0.4)ⁿ ∪[n]
|z| > 0.8
|z| > 0.4
0.4 < |z| < 0.8
|z| < 0.8

⇒ In a single phase half wave converter feeding resistive load and full wave converter (M - 2 connection) feeding a resistive load the circuit conditions are similar. The firing angle is a. Then the waveshapes of voltages across thyristors
are similar
are not similar
may be similar or dissimilar
are similar only for some values of a

⇒ Directivity means
maximum directive gain
zero directive gain
minimum directive gain
none of the above

⇒ Which of the following devices has substrate?
JFET
Depletion Type MOSFET
Enhancement type MOSFET
Both (b) and (c)

⇒ For the circuit shown in the figure, the current
indeterminate due to indeterminate data
zero
4 Amp
8 Amp

⇒ A 60 W, 23 V bulb is used for 45 minutes. The electrical energy consumed in commercial units is
2700 units
0.45 units
4.5 units
0.045 units

⇒ In SSB generation, the most commonly used filter is
low pass
RC
LC
mechanical

⇒ The integral of a unit impulse is
a unit step function
a ramp function of slope 1
a pulse function of magnitude 1
none of the above

⇒ In push pull amplifier, each transistor conducts for
180°
360°
90°
45°

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

⇒ To convert JK flip flop to D flip flop
connect D to both J and K
connect D to J directly and D to K through inverter
connect D to K directly and D to J through inverter
connect D to K and leave J open

⇒ The tree selected for the formation of state equations contains
all voltage sources
all capacitors
all inductors and current sources
all voltage sources and maximum number of capacitors

⇒ If 1.5% of the output of an amplifier is feedback positively to the input, the minimum gain required of the amplifier for oscillations to occur, is
16.6
44.4
66.6
75

⇒

Assertion (A): Germanium is more commonly used than silicon.

Reason (R): Forbidden gap in germanium is less than that in silicon.

Both A and R are true and R is correct explanation of A
Both A and R are true but R is not a correct explanation of A
A is true but R is false
A is false but R is true

⇒

Assertion (A): A sine wave with slew rate distortion looks rectangular

Reason (R): The maximum rate of output voltage change is called slew rate

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

⇒ A steel bar needs 1200 AT to magnetise it. The voltage that must be applied to the magnetising coil of 100 turns and 10 Ω resistance is __________ volt.
120
12
1200
10

⇒ Which of the following instruments is used almost exclusively to measure radio frequency currents?
Moving coil
Rectifier
Moving iron
Thermocouple

⇒ A white noise X(t) with two-sided power spectral density 1 x 10^-10 W/Hz is input to a filter whose magnitude squared response is shown be
5 x 10^-7W
1 x 10^-6W
2 x 10^-6W
5 x 10^-6W

⇒ S is closed for a long time and steady state is reached. S is opened at t(0^-). The voltage marked V is V₀ at t = 0⁺ and V_f at t = ∞. Then value of V₀ and V_f are respecti
8, 8
0, 1
4, 0
4, 8

⇒ The gain of an antenna with a circular aperture of diameter 3 metres at a frequency of 5 GHz, will be
2.4674
24.674
246.74
24674

⇒ Which of the following statement is incorrect?
UJT is a 3-terminal diode having two unequally doped regions
A UJT can be triggered by any one of its three terminals
The bi-directional switching characteristics of a diac are symmetrical
As compared to JFETs, MOSFETs generate less noise in high gain amplifiers

⇒ At FM demodulator output noise power density
increases with frequency
decreases with frequency
remains unaltered
none of the above

⇒ The output data lines of microprocessor and memories are usually tristated because
more than one device can transmit information over the data bus by enabling only one device at a time
more than one device can transmit information over the data bus at the same time
the data lines can be multiplexed for both I/P and O/P
it increases the speed of data transfers over the data bus

⇒ The ripple factor of a full wave rectifier is about 0.5.
TRUE
FALSE

⇒ The emitter follower is widely used in electronic instrument because
its voltage gain is less than unity
its voltage gain is very high
its O/P Impedance is low and input impedance is high
its O/P Impedance is high and I/P impedance is low