Q.40. A sphere of capacitance 100 pF is charged to a potential of 30kV. Another identical uncharged sphere of capacitance 100 pF is brought near the first sphere, then the charge in the total energy stored on these spheres, when they touch is $\alpha imes 10^{-7}$ J. The value of $\alpha$ is _______ (combined capacitance of spheres is 200 pF).

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Q.40. A sphere of capacitance 100 pF is charged to a potential of 30kV. Another identical uncharged sphere of capacitance 100 pF is brought near the first sphere, then the charge in the total energy stored on these spheres, when they touch is $\alpha 	imes 10^{-7}$ J. The value of $\alpha$ is _______ (combined capacitance of spheres is 200 pF).

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