Physics-
General
Easy
Question
Which of the following is represented by the area enclosed by a hysteresis loop (B-H curve)?
- Permeability
- Retentivity
- Heat energy lost per unit volume in the sample
- Susceptibility
The correct answer is: Heat energy lost per unit volume in the sample
Area enclosed by 
curve represents energy lost. If the area of hysteresis loop is less energy loss is low whereas if the area of hysteresis loop is large energy loss is high.
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For a paramagnetic material, the dependence of the magnetic susceptibility X on the absolute temperature is given as
For a paramagnetic material, the dependence of the magnetic susceptibility X on the absolute temperature is given as
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Susceptibility of ferromagnetic substance is
Susceptibility of ferromagnetic substance is
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Shape of the graph of position 
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As shown in the figure particle P moves from A to B and particle Q moves from C to D. Displacements for P and Q are and y respectively then
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Here is a cube made from twelve wire each of length L, An ant goes from A to G through path A-B-C-G. Calculate the displacement.
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As shown in the figure a particle starts its motion from 0 to A. And then it moves from. A to B. 
Is an are find the Path length
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physicsGeneral
Maths-
Assertion (A): 
is divisible by the square of14 where n is a natural number Reason (R): 
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Assertion (A): Number of the dissimilar terms
in the sum of expansion 
is 206
Reason (R): Number of terms in the expansion of 
is n+1
Assertion (A): Number of the dissimilar terms
in the sum of expansion is 206
Reason (R): Number of terms in the expansion of is n+1
maths-General
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B=600!, 
then
B=600!, then
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The arrangement of the following with respect to coefficient of 
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in 
where B) 
where C) 
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where D) 
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A: If the term independent of 
in the expansion of 
is 405, then n=
: If the third term in the expansion of 
is 1000, then n=(here n<10)
: If in the binomial expansion of 
the coefficients of 5th
6th and 7th terms are in A.P then n= [Arranging the values of n in ascending order]
A: If the term independent of in the expansion of is 405, then n=
: If the third term in the expansion of is 1000, then n=(here n<10)
: If in the binomial expansion of the coefficients of 5th 6th and 7th terms are in A.P then n= [Arranging the values of n in ascending order]
maths-General
maths-
The arrangement of the following binomial expansions in the ascending order of their independent terms A 
B 
C 
D 
The arrangement of the following binomial expansions in the ascending order of their independent terms A B C D
maths-General
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A:
B:
term independent of x in 
C:
then
A: B: term independent of x in C: then
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I The sum of the binomial coefficients of the expansion 
is 
II The term independent of x in the expansion of is 
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Which of the above statements is correct?
I The sum of the binomial coefficients of the expansion is
II The term independent of x in the expansion of is when is even.
Which of the above statements is correct?
maths-General
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: The fourth term in the expansion of 
is equal to the second term in the expansion of 
then the positive value of is 
:In the expansion of 
, the coefficients of and 
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: The fourth term in the expansion of is equal to the second term in the expansion of then the positive value of is
:In the expansion of , the coefficients of and are equal, then the positive value of a is 8
maths-General
