Question is ⇒ A current of 1 A in the coil of an iron cored electromagnet causes B = 0.5T. If current is 2A, B =, Options are ⇒ (A) 0.5 T, (B) 1 T, (C) 1 T or more, (D) 1 T or less, (E) , Leave your comments or Download question paper.

Question is ⇒ A current of 1 A in the coil of an iron cored electromagnet causes B = 0.5T. If current is 2A, B =, Options are ⇒ (A) 0.5 T, (B) 1 T, (C) 1 T or more, (D) 1 T or less, (E) , Leave your comments or Download question paper. Previous question Next question


Q1.	A current of 1 A in the coil of an iron cored electromagnet causes B = 0.5T. If current is 2A, B =
A.	0.5 T [Wrong Answer]
B.	1 T [Wrong Answer]
C.	1 T or more [Wrong Answer]
D.	1 T or less [Correct Answer]
View Answer 1 -1 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 :

⇒ If a short line is terminated in characteristic impedance it behaves as an infinite line.
TRUE
FALSE

⇒ In the NMOS inverter
the driver and achieve load are enhancement type
the driver is enhancement type and load depletion type
both driver and load are depletion type
the driver and load are depletion type

⇒ IF amplifiers for radio receivers are often tuned to
456 Hz
456 kHz
3456 MHz
456 GHz

⇒ Auto correlation for t = 0 is equal to
average power S of waveform
square of average power S of waveform
half of average power S of waveform
square root of average power S of waveform

⇒

Assertion (A): In 8085 SP and PC are 8 bit each.

Reason (R): 8085 is an 8 bit microprocessor.

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 minimum function has
poles and zeros on imaginary axis of s plane
no poles or zeros on imaginary axis of s plane
only poles but no zeros on imaginary axis of s plane
only zeros but no poles on imaginary axis of s plane

⇒ In a 4 bit D/A converter, the offset error is the output voltage when input digital voltage is
1111
0
either 1111 or 0000
none of the above

⇒ If both the emitter base and the collector base junctions of a bipolar transistor are forward biased, the transistor is in the
active region
saturated region
cut off region
inverse mode

⇒ Audio-signal modulates a 125 MHz carrier, causing a frequency deviation of 5 kHz. The bandwidth of the narrowband FM signal is __________ kHz.
10
8
9
20

⇒ Radar is essentially an echo ranging system
TRUE
FALSE

⇒ In a waveguide the dielectric region is generally
air
magnetic material
brass
mica

⇒ A ring counter with 5 flip flops will have
5 states
10 states
32 states
infinite states

⇒ In following figure find V_DSQ by assuming gate current is negligible for the p-channel JFET. (if I_DQ = - 6 mA, R_S = 0, V_DD = -18 V, R_D = 2 kΩ, I_DSS = - 10 mA, I_PO = - 3 V)
4 V
- 6 V
- 10 V
6 V

⇒ In an n channel MOSFET, the substrate is connected
to negative terminal of battery
to positive terminal of battery
to either positive or negative terminal of battery
none of the above

⇒ The geostationary communication satellite APPLE is parked in the equatorial orbit at
102° E longitude over Sumatra
90° E longitude over Bangladesh
74° E longitude over India
67° E longitude over Pakistan

⇒ In a JK Master slave flip flop
both master and slave are positively clocked
both master and slave are negatively clocked
master is positively clocked and slave is negatively clocked
master is negatively clocked and slave is positively clocked

⇒ In a series RLC high Q circuit the current peaks at a frequency.
equal to the resonant frequency
greater than the resonant frequency
less than the resonant frequency
none

⇒ In the graphical analysis of an amplifier circuit, the slope of dc load line depends on
load resistance only
collector supply voltage only
both load resistance and collector supply voltage
none of the above

⇒ For broadcasting purpose, full AM signal is preferred to SSB signal because
it requires large bandwidth
generation of full AM is easier
detection of full AM is simpler
none of the above

⇒ The poles of an RC function
are simple and lie or negative real axis
are simple and lie on ω axis
must be complex conjugate
may be anywhere on s plane

⇒ When analysing two port networks in parallel it is more convenient to use
z parameters
h parameters
T parameters
y parameters

⇒

Assertion (A): If a carrier is modulated by three sine waves and m₁, m₂, m₃ are the modulation indices, the total modulation index m_t
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

⇒ Negative feedback is used in audio amplifiers to
operate class C
reduce distortion
increase distortion
increase gain

⇒ In the circuit of figure, the power consumed in resistance R is measured when one source is acting at one time. These values are 18 W, 50 W and 98 W. When all source act together the maximum and minimum power ca
98 W and 18 W
166 W and 18 W
450 W and 2 W
166 W and 2 W

⇒ Indicate the false statement: If SWR on a transmission line is infinite, the line is terminated in
open circuit
short circuit
pure reactance
complex impedance

⇒ The voltage applied to an R-L circuit at t = 0 when switch is closed is 100 cos (100 t + 30°). The circuit resistance is 80 Ω and inductance is 0.6 H (in which initial current is zero). What is the maximum amplitude of current flowing through the circuit?
0.0416666666666667
0.0833333333333333
0.208333333333333
0.416666666666667

⇒ For the system in the given figure, the transfer function C(s)/R(s
G₁ + G₂ + G₃
G₁ G₂ + G₃
G₁ G₂ G₃
(G₁ + G₂) G₃

⇒ Which of the following is type declaration statement in C?
int bar
s = s + 1
king = horse + 1
prin = prin * prin

⇒ An ideal current source has
infinite source resistance
zero source resistance
large value of source resistance
finite value of source resistance

⇒ A parallel connection of circuit is at below resonance circuit behave as
RC circuit
RL
RLC
resistive only