Question is ⇒ If ROC of x[n] is R1 then ROC of an x[n] is, Options are ⇒ (A) R1a, (B) R1/a, (C) a/R1, (D) R1 + a, (E) , Leave your comments or Download question paper.

Question is ⇒ If ROC of x[n] is R1 then ROC of an x[n] is, Options are ⇒ (A) R1a, (B) R1/a, (C) a/R1, (D) R1 + a, (E) , Leave your comments or Download question paper. Previous question Next question


Q1.	If ROC of x[n] is R₁ then ROC of aⁿ x[n] is
A.	R₁a [Wrong Answer]
B.	R₁/a [Correct Answer]
C.	a/R₁ [Wrong Answer]
D.	R₁ + a [Wrong Answer]
View Answer 1 -1 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 :

⇒

Assertion (A): When a photoconductive device is exposed to light, its bulk resistance increases.

Reason (R): When exposed to light, electron hole pairs are generated in the photoconductive device.

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): Each memory chip has its own address latch.

Reason (R): ALE signal comes out of microprocessor 8085 and goes to memory chip.

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

⇒ In load commutated chopper, the commutating element
is capacitor
is capacitor and inductor
is capacitor, inductor and auxiliary thyristor
any of the above depending on load

⇒ In broadside array
the principle direction radiation is perpendicular to the array axis and also to the plane containing the array elements
the principle direction radiation is parallel to the array axis and also to the plane containing the array elements
the principle direction radiation is parallel to the array axis and perpendicular to the plane containing the array elements
the principle direction radiation is perpendicular to the array axis and parallel to the plane containing the array elements

⇒

Assertion (A): In reverse biased p-n junction, the reverse saturation current is nearly constant if the reverse voltage is less than critical value.

Reason (R): The total reverse current is sum of reverse saturation current and surface leakage current.

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

⇒ A semi-conductor device that behaves like two SCRs is
UJT
MOSFET
JFET
TRIAC

⇒ A resistance strain gauge has a resistance of about
100 Ω
25 Ω
10 Ω
1 Ω

⇒

Match the following:

	List I (Microwave device)		List II (Application)
A.	PIN diode	1.	Microwave amplification
B.	GaAs MOSFET	2.	Low noise microwave generation
C.	Transferred electron device	3.	Electronic tuning of MW oscillator
D.	Varactor diode	4.	Light wave detection

A-1, B-2, C-4, D-3
A-4, B-1, C-2, D-3
A-2, B-3, C-1, D-4
A-3, B-4, C-2, D-1

⇒ The unit for luminous energy is
lumens/sec
lumens/m²
lumen-sec
lumen/m

⇒ A broadcast radio transmitter radiates 5 kW when the modulation percentage is 60. How much of this is carrier power?
6.66 kW
5 kW
4.9 kW
4.23 kW

⇒ In MTI radar, clutter means
echos from moving targets
echos from stationary targets
atmospheric noise
thermal noise

⇒ The resolution of an n bit DAC with a maximum input of 5 V is 5 mV. The value of n is
8
9
10
11

⇒

Assertion (A): A branch with no current through it can be replaced by an open circuit or short circuit.

Reason (R): Reciprocity theorem is applicable only if the circuit has one source.

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

⇒ Measurement of Hall coefficient enables the determination of
recovery time of stored carrier
type of conductivity and concentration of charge carriers
temperature coefficient and thermal conductivity
Fermi level and forbidden energy gap

⇒ The impulse response h[n] of a linear time invariant system is given by h[n] = ∪[n + 3 ] + ∪[n - 2] -2∪[n -7]. The above system is
stable but non-casual
stable and casual
casual but unstable
unstable and not casual

⇒ Which of the following is true?
Intel 8080 was the ancestor of Intel 8085
Intel 8080 was the ancestor of Intel Z 80
Intel 8080 was the ancestor of both Intel 8085 and Z 80
Intel 8085 was the ancestor of Intel 8085

⇒ Assuming earth to be a sphere of radius 6400 km and height of a geosynchronous satellite above Earth as 36000 km, the velocity of a geosynchronous satellite is __________ km/hr.
28000
15000
36000
11100

⇒ A capacitance transducer can be used to measure
thickness of sheet
displacement
level of fluids
all of the above

⇒ In a series RLC circuit, p-f is leading if X_C < X_L.
TRUE
FALSE

⇒ If frames are repeated at 60 Hz and each frame has 525 lines, the time for scanning one horizontal line (for progressive scanning and no interlacing) is about
320 μs
32 μs
3.2 μs
0.32 μs

⇒ Which type of fading causes serious distortion of modulated signal?
Selective fading
Interference fading
Absorption fading
Polarization fading

⇒ We can know the arrangement of atom in a material by studying electron diffraction pattern.
TRUE
FALSE

⇒ Which op-amp circuit uses a diode as one of the circuit components?
Integrating amplifier
Differentiating amplifier
Logarithmic amplifier
Summing amplifier

⇒ Volume control found on the front panel of television receivers
a ganged resistor
a variable resistor of logarithmic type
a variable resistor of linear type
a trimmer potentiometer

⇒ In figure, i(t) is a unit step current. The steady state value of v(t
2 V
3 V
6 V
9 V

⇒ The ratio of impurity atoms to intrinsic semiconductor atoms in an extrinsic semiconductor is about.
0.0486111111111111
0.736111111111111
1 : 100000
1 : 10⁸

⇒

Assertion (A): Bandwidth of a TV signal is 5 MHz.

Reason (R): TV systems use vestigial side band transmission.

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 but R is wrong
A is wrong but R is correct

⇒ In the given figure the reflected voltage wave after first reflectio
18 V
-18 V
30 V
-30 V

⇒

Assertion (A): Gray code is used in shaft position encoding.

Reason (R): In gray code only a single bit change occurs when going from one code to another.

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 true, R is false
A is false, R is true

⇒ Electrostatic voltmeter is suitable only for low voltages.
TRUE
FALSE