Recent questions tagged q70

Two long wires carrying current $I_1$ and $I_2$ are arranged as shown in figure. the one carrying current $I_1$ is along the x-axis . the other carrying current $I_2$ is along a line parallel to the y-axis , given by $x=0$ and $z=d$ find the force exacted at $O_2$ because of the wire along the x-axis

asked Jul 31, 2015 by meena.p

1 answer

What is the SI unit for magnet flux and magnetic field strength

asked Jul 20, 2015 by meena.p

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A secondary cell after long use has an emt of $1.9\;V$ and a large internal resistance of $ 380 \Omega$ What maximum current can be drawn from the cell ?

asked Jul 1, 2015 by meena.p

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An infinite line charge produces a field of $ 9 \times 10^4 \;N/c$ at a distance of $2 \;cm$ . calculate the linear density .

asked Apr 28, 2015 by meena.p

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Which of the following is not the ore of zinc ?

asked Jul 31, 2014 by thanvigandhi_1

1 answer

True-or-False :$\sin 10^{\large\circ}$ is greater than $\cos 10^{\large\circ}$

asked May 20, 2014 by sreemathi.v

1 answer

For the estimation of nitrogen, 1.4 g of an organic compound was digested by Kjeldahl method and the evolved ammonia was absorbed in 60 mL of $\large\frac{M}{10}$ sulphuric acid.The unreacted acid required 20 mL of $\large\frac{M}{10}$ sodiumhydroxideforcompleteneutralization.The percentage of nitrogen in the compound is:

asked Apr 7, 2014 by sreemathi.v

1 answer

Which of the following biomolecules is insoluble in water?

asked Mar 30, 2014 by thanvigandhi_1

1 answer

A heat engine absorbs heat q1 from a source at temperature $T_1$ and heat $ q_2$ from a source a temperature $T_2$. Work done is found to be $J(q_1+q_2)$. This is in accordance with

asked Mar 18, 2014 by thanvigandhi_1

1 answer

Pyrolusite is

asked Mar 18, 2014 by meena.p

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buna-S ,buna –N are

asked Mar 12, 2014 by thanvigandhi_1

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Which of the following are isoelectronic and isostructural?

asked Mar 7, 2014 by sreemathi.v

1 answer

Calculate the energy of electromagnetic waves of wavelength $3000\: A^{\circ}.$

asked Mar 1, 2014 by thanvigandhi_1

1 answer

The IUPAC name of the compound

asked Feb 25, 2014 by meena.p

1 answer

In the following reaction

asked Feb 24, 2014 by sreemathi.v

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The average speed of an ideal gas molecule at $27^{\large\circ}C$ is 0.3 m/s. Calculate the average speed at $927^{\large\circ}C$

asked Feb 21, 2014 by sharmaaparna1

1 answer

In an electrolysis experiment electric current was passed for 5hr through two cells connected in series.The first cell contains gold salt and second contains $CuSO_4$ solution.9.83g of gold was deposited in first cell.The magnitude of current in amperes is :-

asked Feb 17, 2014 by sreemathi.v

1 answer

Match the column-I with column-II ,which are true for 20% w/w aqueous KI solution (density of KI solution is 1.20g/ml & M.wt of KI is 166 g/mol)

asked Feb 14, 2014 by sreemathi.v

1 answer

Solve : $e^x y dx=(e^{2x}+1) dy \quad y \cos =1$

asked Feb 6, 2014 by meena.p

1 answer

Find the eccentricity of ellipse $\large\frac{x^2}{64}+\frac{y^2}{100}=1$?

asked Feb 6, 2014 by sreemathi.v

1 answer

(Crystal Field Theory) Strong field ligands such as $CN^-$:

asked Feb 3, 2014 by sreemathi.v

1 answer

The transitional metal which form green compound in +3 oxidation state and yellow orange compound in +6 oxidation state is

asked Jan 30, 2014 by sreemathi.v

1 answer

The circuit given below represents

asked Jan 30, 2014 by meena.p

1 answer

The metal which gives brick red colour in flame test is

asked Jan 28, 2014 by sreemathi.v

1 answer

If variance of $ x_1, x_2,....x_n$ is $ \sigma^2$ then variance of $ ax_1, ax_2,.....ax_n ( a \neq 0)$ is

asked Jan 26, 2014 by thanvigandhi_1

1 answer

Hyperol is an addition product of $H_2O_2$ with

asked Jan 24, 2014 by sreemathi.v

1 answer

Tajmahal is effected by

asked Jan 21, 2014 by sreemathi.v

1 answer

A 3p-orbital has :

asked Jan 13, 2014 by sreemathi.v

1 answer

Find the sum of all natural numbers between 45 and 300 that are exactly divisible by 7.

asked Jan 5, 2014 by yamini.v

1 answer

A vector $\overrightarrow a$ is parallel to the line of intersection of planes $P_1$ containing vectors $\hat i,\:\hat i+\hat j$ and $P_2$ conataining vectors $\hat i-\hat j,\:\hat i+\hat k$. Then the angle between $\overrightarrow a$ and $\hat i-2\hat j+2\hat k$ is?

asked Jan 5, 2014 by rvidyagovindarajan_1

1 answer

If $f(x)=\large\frac{1-\tan x}{4x-\pi}\qquad $$x\neq \large\frac{\pi}{4}$,$x \in [0,\large\frac{\pi}{2}]$ and f(x) is continuous in $[0,\large\frac{\pi}{2}]$ then $f(\large\frac{\pi}{4})$

asked Dec 24, 2013 by sreemathi.v

1 answer

Integrate : $ \int \large\frac{a \sin x +b}{\cos^2 x }$$ dx$

asked Dec 17, 2013 by meena.p

1 answer

Percentage of free space in a body centred cubic unit cell is :

asked Dec 17, 2013 by thanvigandhi_1

0 answers

" Western Blot " test is done for the confirmation of :

asked Dec 9, 2013 by thanvigandhi_1

1 answer

An example for endogenous immune complex response

asked Dec 5, 2013 by thanvigandhi_1

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If $\overrightarrow a=\hat i+\hat j+\hat k,\:\overrightarrow b=\hat i\:\:and\:\:\overrightarrow c=x\hat i-\hat j+\hat k$, then the value of $x$ for which $\overrightarrow a\:\overrightarrow b\:and\:\overrightarrow c$ are coplanar is ?

asked Dec 1, 2013 by rvidyagovindarajan_1

1 answer

$B_2H_6+HCl\overset{catalyst}{\rightarrow}B_2H_5Cl+H_2\uparrow$.The catalyst is

asked Nov 28, 2013 by sreemathi.v

1 answer

$pH$ at which an acidic indicator with $K_{in} = 1 \times 10^{-5}$ changes colour when the indicator is $1 \times 10^{-3}$ M is

asked Nov 27, 2013 by mosymeow_1

1 answer

The phagocytic granulocyte is :

asked Nov 26, 2013 by thanvigandhi_1

0 answers

Identify the ' place of hydrolysis of ATP ' and the ' power stroke ' in muscle contraction, in the picture given below :

asked Nov 14, 2013 by thanvigandhi_1

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If $u= \sin^{-1} \bigg(\large\frac{x}{y}\bigg)$$+\tan^{-1} \bigg(\large\frac{y}{x}\bigg)$, then the value of $x \large\frac{\partial u}{\partial x}$$+y \large\frac{\partial u}{\partial y}$ is :

asked Nov 13, 2013 by meena.p

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