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Recent questions tagged q38
Questions
A long solenoid of diameter $0.1\; m$ has $2 \times 10^{4}$ turns per meter. At the centre of the solenoid, a coil of 100 turns and radius 0.01 m is placed with its axis coinciding with the solenoid axis. The current in the solenoid reduces at a constant rate to -OA from 4A in 0.05s. If the resistance of the coil is $10 \pi^2 \Omega$ the total charge flowing through the coil during this time is :
neet
2017
physics
past paper
t1
q38
asked
Oct 31, 2017
by
meena.p
0
answers
A charge q is placed in an uniform electric field E. If it is released, then the K.E of the charge after travelling distance y will be :
neet
1998
physics
past paper
t1
q38
asked
Oct 10, 2017
by
priyanka.c
0
answers
A straight horizontal conducting rod of length $0.45\;m$ and mass $60\;g$ is suspended by two vertical wires at its ends. A current of $5.0\;A$ is setup in the rod through the wires . What will be the total tension in the wires if the direction of current is reversal keeping the magnetic field normal to the conductor in order that the tension in the wires is zero?(Ignore the mass of wires ) $g= 9.8 \;m/s^2$
cbse
class12
physics
ch-4
sec-b
q38
ncert
medium
asked
Jul 28, 2015
by
meena.p
1
answer
Would the maximum possible magnetization of a para magnetic sample be of the same order of magnitude as the magnetization of a ferromagnet.
cbse
class12
physics
ch-5
sec-a
q38
ncert
easy
asked
Jul 14, 2015
by
meena.p
1
answer
If P.d applied across a conductor is increased to $2V$ ,how will the drift velocity of the electrons change?
cbse
class12
physics
ch-3
sec-a
q38
difficult
asked
Jun 30, 2015
by
meena.p
1
answer
Name the dielectric whose molecules have (i) non- zero and (ii) zero dipole moment.
cbse
class12
physics
ch-1
sec-a
q38
easy
asked
Apr 22, 2015
by
meena.p
1
answer
State whether the following statement is True or False : If $P$ is a point the ellipse $\large\frac{x^2}{16}+\frac{y^2}{25}$$=1$ whose foci are $S$ and $S'$,then $PS+PS'=8$.
cbse
class11
math
conic-sections
ellipse
exemplar
sec-a
easy
q38
asked
Oct 15, 2014
by
sreemathi.v
1
answer
Calculate the freezing point of a solution containing 0.520g glucose $(C_6H_{12}O_6)$ dissolved in 80.20g of water.For water $K_f=1.86Kkg mol^{-1}$
cbse
class12
chemistry
ch2
solutions
sec-a
medium
additionalproblem
q38
asked
Aug 8, 2014
by
sreemathi.v
1
answer
At room temperature ,sodium crystallises in a body-centred cubic lattice with $a=4.24A^{\large\circ}$.The theoretical density of sodium (At.wt of Na=23) is ?
cbse
class12
chemistry
ch1
states-of-matter
solid-state
sec-b
medium
additionalproblem
q38
asked
Aug 4, 2014
by
sreemathi.v
1
answer
The reaction of dilute $\text{HNO}_3$ with $\text{Cu}$ or $\text{Ag}$ libertaes the gas
jeemain
chemistry
inorganic-chemistry
class12
ch8
d-and-f-block-elements
important-compounds
medium
q38
asked
Jul 31, 2014
by
thanvigandhi_1
1
answer
If $e_1,e_2,e_3,e_4$ are the four elementary outcomes in a sample space and $P(e_1) = .1, P(e_2) = .5, P (e_3) = .1$, then the probability of $e_4$ is ______.
cbse
math
class11
ch16
probability
exemplar
q38
sec-a
easy
asked
Jul 9, 2014
by
sreemathi.v
1
answer
Coefficient of variance of two distributions are 50 and 60 , and their arithmetic means are 30 and 25 respectively. Difference of their standard deviation is:
cbse
math
class11
ch15
statistics
exemplar
q38
sec-b
medium
asked
Jul 9, 2014
by
meena.p
1
answer
Choose the correct answer from the given four options. A point equidistant from the lines $4x + 3y + 10 = 0, 5x – 12y + 26 = 0$ and $7x+24y-50=0$ is
cbse
math
class11
ch10
straight-lines
exemplar
objective-type-question
sec-a
medium
q38
asked
Jul 6, 2014
by
thanvigandhi_1
1
answer
The last two digits of the numbers $3^{400}$ are $01$
cbse
math
class11
ch8
binomial-theorem
exemplar
q38
sec-a
easy
asked
Jun 25, 2014
by
sreemathi.v
1
answer
The number of ways of distributing 8 identical balls in 3 distinct boxes,so that none of the boxes is empty is
cbse
math
class11
ch7
permutations-and-combinations
additionalproblem
q38
sec-b
medium
asked
Jun 20, 2014
by
sreemathi.v
1
answer
The total number of 9 digit numbers which have all different digits is
cbse
math
class11
ch7
permutations-and-combinations
exercise7-3
exemplar
q38
sec-b
medium
asked
May 16, 2014
by
sreemathi.v
1
answer
The value of $\tan 75^{\large\circ}-\cot 75^{\large\circ}$ is equal to
cbse
math
class11
ch3
trigonometric-functions
exemplar
q38
sec-b
medium
asked
Apr 21, 2014
by
sreemathi.v
1
answer
The statement $\sim(p \leftrightarrow \sim q)$ is
jeemain
math
class11
ch14
mathematical-reasoning
jeemain-2014
implications-(tautology-contradiction.)
q38
asked
Apr 6, 2014
by
balaji.thirumalai
1
answer
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