Assuming that the earth is a sphere of radius RE with uniform density, the distance from its centre at which the acceleration due to gravity is equal to g/3 (g is the acceleration due to gravity on the surface of earth) is

Question:

Options :

(a) RE/3
(b) 2RE/3
(c) RE/2
(d) RE/4

Answer :

(a) R_E/3

Answer Steps :

step 1

step 2

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An alternating voltage source is connected in series with a resistance R and an inductance L. If the potential drop across the resistance is 200 V and across the inductance is 150 V, then the applied voltage is:

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