Question is ⇒ The inductance of a single layer solenoid of 10 turns is 5 μH. Which one of the following is the correct value of inductance when the number of turns is 20 and the length is doubled., Options are ⇒ (A) 10 μH, (B) 20 μH, (C) 40 μH, (D) 5 μH, (E) , Leave your comments or Download question paper.

Question is ⇒ The inductance of a single layer solenoid of 10 turns is 5 μH. Which one of the following is the correct value of inductance when the number of turns is 20 and the length is doubled., Options are ⇒ (A) 10 μH, (B) 20 μH, (C) 40 μH, (D) 5 μH, (E) , Leave your comments or Download question paper. Previous question Next question


Q1.	The inductance of a single layer solenoid of 10 turns is 5 μH. Which one of the following is the correct value of inductance when the number of turns is 20 and the length is doubled.
A.	10 μH [Correct Answer]
B.	20 μH [Wrong Answer]
C.	40 μH [Wrong Answer]
D.	5 μH [Wrong Answer]
View Answer 1 -1 Explanation:- Answer : A 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 :

⇒ A device with input x(t) and y(t) is characterized by y(t) = x²(t). An FM signal with frequency deviation of 90 kHz and modulating signal bandwidth of 5 kHz is applied to this device. The bandwidth of the output signal is
370 kHz
190 kHz
380 kHz
95 kHz

⇒ Mouse is a very suitable input device for computers.
TRUE
FALSE

⇒ The number of logic devices required in a Mod-16 synchronous counter are
4
5
6
7

⇒ Permalloy is
a variety of stainless steel
a polymer
a conon-ferrous alloy used in aircraft industry
a nickel an iron alloy having high permeability

⇒ The phase velocity in a coaxial line is
greater than C
equal to C
less than C
not depend on C

⇒ (100101)₂ is
(37)₁₀
(69)₁₀
(41)₁₀
(5)₁₀

⇒ A switch tail ring counter is made by using a single D FF. The resulting circuit is a
SR FF
JK FF
D FF
T FF

⇒ Which is correct for a driving point function?
If the real part of a pole or zero is zero, that pole must be simple
If the real part of a pole or zero is zero, that pole or zero must be simple
If the real part of a zero is zero, that pole or zero must be simple
If the real part of a zero is zero that zero must be simple

⇒ If average correlation between v₁(t) and v₂(t) is R₁₂(t) and average correlation between v₂(t) and v₁(t) is R₂₁(t) then
R₁₂(t) = R₂₁(t)
R₂₁(t) = R₁₂(t)
R₁₂(t) = - R₂₁(t)
none of these

⇒ A 0 to 6 counter consist of 3 flip-flop and a combinational circuit of 2 input gates. The combinational circuit consist of
one AND gate
one OR gate
one AND and One OR
two AND gate

⇒ Vividh Bharti programme is transmitted in
short wave
medium frequency
very high frequency
none of the above

⇒ Which of the following is not an application software?
MS Word
DBMS
Worksheet
Lisp

⇒ Nyquist plot provides information about absolute stability as well as relative stability.
TRUE
FALSE

⇒

Assertion (A): A PROM is a user programmable ROM.

Reason (R): After programming PROM behaves like ROM.

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

⇒ A signal f(t) = cos 10pt + 3 cos 4pt is instantaneously sampled. The maximum allowable value of sampling interval T_s in sec is
1 / 4 sec
1 / 8 sec
1 / 8p sec
1 / 10 sec

⇒ In communication receivers the fidelity is provided by
audio stage
detector range
mixer stage
all of the above

⇒ De Sauty bridge is very widely used due to
simplicity
perfect balance for imperfect capacitor
perfect balance for air capacitors
maximum sensitivity

⇒

Assertion (A): SSB transmitter is generally smaller than AM transmitter

Reason (R): SSB systems mostly use combined transmitter receiver.

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

⇒ PWM can be generated
by a free running multivibrator
by integrating the signal
by a monostable multivibrator
by differentiating pulse position modulation

⇒ A dielectric does not have leakage current.
TRUE
FALSE

⇒ The boolean expression for shaded area in the given figur
AB + AC
ABC + ABC
ABC + ABC
None of these

⇒ (29)₁₃ ÷ (29)₁₂ x (29)_x = (23)₁₆ Find x
11
12
13
16

⇒ In a series RC circuit Z = (R² + ω²C²)^0.5.
TRUE
FALSE

⇒ In parallel in-parallel out shift register all bits are loaded and read simultaneously.
TRUE
FALSE

⇒ In a single phase full wave regulator, the firing angles in the positive and negative half cycles are generally
equal
different
equal or different
different but sometimes equal

⇒

Match the following:

	List I		List II
A.	Resistance	1.	M^-1L^-2T⁴I²
B.	Inductance	2.	ML²T^-2I^-2
C.	Capacitance	3.	ML²T^-3I²

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

⇒ In a 4 bit counter the output of 3 JK FFs from MSB downward are connected to the NAND gate whose O/P is connected to CLR
it is a MOD-14 counter
it is MOD-13 counter
it is divided by 13 counter
it is divide by 10 counter

⇒ In a bipolar transistor
recombination in base regions of both n-p-n and p-n-p transistor is low
recombination in base regions of both n-p-n and p-n-p transistors is high
recombination in base region of n-p-n transistor is low but that in p-n-p transistor is high
recombination in base region of p-n-p transistor is low but that in n-p-n transistor is high

⇒ Cassegrain feed is used with a parabolic reflection to
reduce the size of the main reflector
increase the gain of the system
increase the beamwidth of the system
allow the feed to be placed at a convenient point

⇒

Assertion (A): In totem pole output the output impedance is low.

Reason (R): TTL gate with active pull up should not be used in wired AND connection.

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