If the compressibility of water is per unit atmospheric pressure, then the decrease in volume V due to P atmospheric pressure will be

(b) Compressibility = V/V P ==> = V PV ==> V = PV

If the compressibility of water is per unit atmospheric pressure,…

A cylinder of $10 \,kg$ is sliding in a plane with an initial velocity of $10 \,m/s$. If the coefficient of friction between the surface and cylinder is $0.5$ then before stopping, it will cover. $(g = 10\,\,m/{s^2})$ ........ $m$

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The electric field between the two spheres of a charged spherical condenser

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A particle is acted upon by a force of constant magnitude which is always perpendicular to the velocity of the particle, the motion of the particle takes place in a plane. It follows that

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Potential difference between centre $\&$ the surface of sphere of radius $R$ and uniform volume charge density $\rho$ within it will be :

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A small piece of metal wire is dragged across the gap between the poles of a magnet in 0.4 s. If the change in magnetic flux in the wire is $8 \times 10^{-4}$ wb, then emf induced in the wire is:

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There exists an electric field of magnitude $E$ in $x$-direction. If the work done in moving a charge of $0.2 \,C$ through a distance of $2 \,m$ along a line making an angle $60^{\circ}$ with $x$-axis is $4 \,J$, then the value of $E$ is ........ $N / C$

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An inductance of $2\,H$ carries a current of $2\,A$. To prevent sparking when the circuit is broken a capacitor of $4\,\mu F$ is connected across the inductance. The voltage rating of the capacitor is of the order of

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For the arrangement of the potentiometer shown in the figure, the balance point is obtained at $a$ distance $75\,cm $ from $A$ when the key $k$ is open. The second balance point is obtained at $60\, cm$ from $A$ when the key $k$ is closed. Find the internal resistance (in $ \Omega$) of the battery $E_1$.