The electric field intensity is produced by the radiation coming from a 100 W bulb at a distance of 3 m is E . The electric field intensity produced by the radiation coming from 60 W at the same dista

Question

The electric field intensity is produced by the radiation coming from a 100 W bulb at a distance of 3 m is E . The electric field intensity produced by the radiation coming from 60 W at the same distance is x 5 E . Where the value of x = _________ .

TestHub · Accepted Answer

c ε 0 E 2 = 100 4 π × 3 2 ⇒ c ε 0 x 5 E 2 = 60 4 π × 3 2 ⇒ x 5 = 3 5 ⇒ x = 3

Physics - Electrostatics Question with Solution | TestHub

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