Question is ⇒ Assertion (A): For best results the system of a D'Arsonval galvanometer should be slightly under damped.Reason (R): Degree of damping affects the time taken by the instrument to come to final position., Options are ⇒ (A) Both A and R are true and R is correct explanation of A, (B) Both A and R are true but R is not correct explanation of A, (C) A is true R is false, (D) A is false R is true, (E) , Leave your comments or Download question paper.

Reason (R): Degree of damping affects the time taken by the instrument to come to final position.

, Options are ⇒ (A) Both A and R are true and R is correct explanation of A, (B) Both A and R are true but R is not correct explanation of A, (C) A is true R is false, (D) A is false R is true, (E) , Leave your comments or Download question paper. '/>

Reason (R): Degree of damping affects the time taken by the instrument to come to final position.


Q1.	Assertion (A): For best results the system of a D'Arsonval galvanometer should be slightly under damped. Reason (R): Degree of damping affects the time taken by the instrument to come to final position.
A.	Both A and R are true and R is correct explanation of A [Wrong Answer]
B.	Both A and R are true but R is not correct explanation of A [Correct Answer]
C.	A is true R is false [Wrong Answer]
D.	A is false R is true [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 :

⇒ The critical frequency of 'F' layer is greater than 30 MHz.
TRUE
FALSE

⇒ For a n-channel JFET with r₀ = 10 kW, (V_Gs= 0 V, V_P = - 6 V)the drain resistance r_d at V_GS= - 3 V is given by
40 kΩ
2.5 kΩ
4.44 kW
120 kW

⇒ A second-order band-pass active filter can be obtained by cascading a low pass second order section having cut off frequency f_OH with a high pass second order section having cut-off frequency f_OL provided
f_OH > f_OL
f_OH < f_OL
f_OH = f_OL
f_OH ≤ 1/2f_OL

⇒ The ratio of tangential component of electric field at the surface of a conductor and the linear current density resulting from this field is __________ impedance
characteristic
critical
surface
polarizing

⇒

Assertion (A): A quarter wave transformer is used to match a resistive load to a transmission line.

Reason (R): A quarter wave transformer is a transmission line of quarter wave length.

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

⇒ A system has high gain and phase margin. The system is
very stable
sluggish
very stable and sluggish
oscillatory

⇒ If an admittance Y(s) has a term Ks, the realization would give
an inductance of value K
a resistance of value K
a capacitance of value K
either (a) or(c)

⇒

Assertion (A): At a temperature of 1000 K, thermionic emission current is about 0.1 A/cm² of surface.

Reason (R): Thermionic emission current is given by I_th = SA₀ T² e^-Ew/kT.

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

⇒ The numerical value of directive gain may lie between
1 and + 1
0 and 1
0 and ∞
1 and ∞

⇒ If N = 196, the result of the following program will be 196
16
16
196

⇒ A signal m(t) = 5 cos 2p 100 t frequency modulates a carrier. The resulting FM signal
0.1 kHz
6 kHz
3.2 kHz
100 kHz

⇒ I = dq/dt.
TRUE
FALSE

⇒ Consider the following Statements regarding resistance strain gauge

The gauge factor is in the range of 2 to 5.
The resistance changes due to change in specific resistance with strain.
The resistance increases with increase in temperature.

Of the above statements, which are correct?
1, 2, 3
1 and 2
2 and 3
1 and 3

⇒ Which materials find application in MASER?
Diamagnetic
Paramagnetic
Ferromagnetic
Ferrimagnetic

⇒

Assertion (A): A complicated waveform can be replaced by sum or difference of two or more waveforms.

Reason (R): The method of superposition is applicable only to linear systems.

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

⇒ The open collector gates in the given figure are tied together. The output
A + B + C + D
A + B + C + D
(A + B) (C + D)
AB + CD

⇒ A VF display operates on the principle of a vacuum diode.
TRUE
FALSE

⇒ A class A transformer coupled power amplifier is to deliver 10 W output. The power rating of transistor should not be less than
5 W
10 W
20 W
40 W

⇒ A zinc carbon cell is a primary cell.
TRUE
FALSE

⇒ EM 84 tube is used in radio receivers as
audio amplifier
RF amplifier
full wave rectifier
magic eye

⇒ The number of electrons in motion at the instant of positive peak of a symmetrical ac wave is the same as that at the instant of negative peak.
TRUE
FALSE

⇒ In VHS format each video head is tilted from azimuth by
20°
10°
6°
1°

⇒ Which one of the following blocks is not common in both AM and FM receivers?
RF amplifier
Mixer
IF amplifier
Slope detector

⇒ In a CE amplifier, the output voltage is equal to product of
ac collector current and ac collector resistance
ac base current and ac collector resistance
ac emitter current and ac emitter resistance
ac collector current and source resistance

⇒ For real and odd signals, the Fourier series coefficient a_n is
purely imaginary
purely real and even
purely imaginary and odd
purely real and odd

⇒ In an RC series circuit excited by dc voltage E, the current at t = 0 is
E/R
E/C
zero
infinity

⇒ The input impedance of CRO is about
zero
10 Ω
100 Ω
one mega ohm

⇒ A receiver having an RF amplifier and an IF of 450 kHz, has Q of the coils 65 and an incoming frequency of 1200 kHz. The image rejection of the receiver is
5870
3655
236
13.3

⇒ Which is the displacement transducer with excellent sensitivity, linearity and resolution?
Incremental encoder
Absolute encoder
LVDT
Strain gauge

⇒ If the intrinsic resistivity at 300°K is 0.37 ohm-m and the electron and hole mobilities at 300°K are 0.28 and 0.15 m²/volt-sec, then the intrinsic carrier concentration of Germanium is __________ .
2.92 x 10¹⁹/m³
2.92 x 10^-19/m³
1.92 x 10¹⁹/m³
3.92 x 10¹⁹/m³