Ask Questions, Get Answers
Menu
X
JEEMAIN Crash Practice
15 Test Series
NEET Crash Practice
5 Test Series
CBSE XII
Math
JEEMAIN
Math
Physics
Chemistry
Practice Test Series
CBSE XI
Math
NEET
Physics
Chemistry
Biology - XII
Biology - XI
Olympiad class V
Math - 5 Test Series
Olympiad class VI
Math - 5 Test Series
studyplans
JEEMAIN Crash Practice
15 Test Series
NEET Crash Practice
5 Test Series
CBSE XII
Math
JEEMAIN
Math
Physics
Chemistry
Practice Test Series
CBSE XI
Math
NEET
Physics
Chemistry
Biology - XII
Biology - XI
Olympiad class V
Math - 5 Test Series
Olympiad class VI
Math - 5 Test Series
mobile
exams
ask
sample papers
tutors
pricing
sign-in
Download our FREE mobile app with 1000+ tests for CBSE, JEE MAIN, NEET
X
Search
Topics
Want to ask us a question?
Click here
Browse Questions
Student Questions
Ad
Home
>>
EAMCET
>>
Physics
0
votes
Two concentric coils of 10 turns each are placed in the same plane. Their radii are 20 cm and 40 cm and carry 0.2 and 0.3 amp. current respectively in opposite directions. The magnetic induction (in Tesla) at the center is
\[\begin {array} {1 1} (1)\;\frac{3}{4} \mu_0 & \quad (2)\;\frac{5}{4} \mu _0 \\ (3)\;\frac{7}{4} \mu _0 & \quad (4)\;\frac{9}{4} \mu _0 \end {array}\]
jeemain
eamcet
physics
2008
q115
Share
asked
Oct 20, 2013
by
meena.p
Please
log in
or
register
to add a comment.
Can you answer this question?
Do not ask me again to answer questions
Please
log in
or
register
to answer this question.
1 Answer
0
votes
$(2)\;\frac{5}{4} \mu _0 $
answered
Nov 7, 2013
by
pady_1
Please
log in
or
register
to add a comment.
Related questions
0
votes
1
answer
Two concentric coils of 10 turns each are situated in the same plane. their radii are $20\;cm$ and $40\;cm$ , they carry $0.2\;A$ and $0.3\;a$ current respectively in opposite directions, the magnetic field(in tesla) at the centre is
asked
Apr 30, 2015
by
meena.p
jeemain
physics
question-paper-1
0
votes
1
answer
Two Concentric circular coils x and y of radii $16\;cm$ and $10\;cm$ respectively lie in the same vertical plane containing the north to south direction . coil x has 20 turns and carries a current of $16\;A$ coil y has 25 turns and carries a current of 18 A. The sense of the current in x is anticlock and clock wise in y, for an observe looks at the coils facing west. Find the magnitude and direction of the net magnetic force due to the coils at their center.
asked
Jul 27, 2015
by
meena.p
cbse
class12
physics
ch-4
sec-b
q25
ncert
difficult
0
votes
1
answer
Two wires A and B are of lengths 40 cm and 30 cm. A is bent into a circle of radius r and B into an arc of radius r. A current $t_1$ is passed through A and $t_2$ through B. To have the same magnetic induction at the center, the ratio of $t_1:t_2$ is
asked
Oct 23, 2013
by
meena.p
jeemain
eamcet
physics
2007
q34
0
votes
1
answer
A wire loop PQRSP is constructed by joining two semi - circular coils of radii $'r_1'\: and \: 'r_2'$ respectively as shown in the figure. If the current flowing in the loop is $'i'$ , then the magnetic induction at the point $'O'$ is :
asked
Nov 18, 2013
by
thanvigandhi_1
jeemain
eamcet
physics
2010
q116
–1
vote
1
answer
Two short managers AB and CD are in the X-Y plane and are parallel to X-axis and coordinate of their centers respectively are (0,2) and (2,0). Line joining the north- south poles of CD is opposite to that of AB and lies along the positive X-axis. The resultant field induction due to AB and CD at a point P(2,2) is $100 \times 10^{-7}\;T$. When the poles of the magnet CD are reversed, the resultant field induction is $50 \times 10^{-7}T$. The value of magnetic moments of AB and CD (in $AM^2$) are :
asked
Oct 29, 2013
by
meena.p
jeemain
eamcet
physics
2006
q28
0
votes
1
answer
A wire of length 'l' is bent into a circular loop of radius R and carries a current I. The magnetic field at the center of the loop is 'B'. The same wire is now bent into a double loop of equal radii. If both loops carry the same current I and it is in the same direction, the magnetic field at the center of the double loop will be :
asked
Oct 14, 2013
by
meena.p
jeemain
eamcet
physics
2009
q111
0
votes
0
answers
Magnetic field induction at the center of a circular coil of radius 5 cm and carrying a current 0.9 A is (in SI units) ($\in _0$= absolute permittivity of air in SI units, velocity of light $= 3 \times 10^8 ms^{-1})$
asked
Nov 8, 2013
by
meena.p
jeemain
eamcet
physics
2005
q36
Ask Question
SUBMIT QUESTION
►
Please Wait
Take Test
JEEMAIN Crash Practice
15 Test Series
NEET Crash Practice
5 Test Series
JEEMAIN
350+ TESTS
NEET
320+ TESTS
CBSE XI MATH
50+ TESTS
CBSE XII MATH
80+ TESTS
x
JEE MAIN, CBSE, NEET Mobile and Tablet App
The ultimate mobile app to help you crack your examinations
Get the Android App
...