question_answer

A 100 W bulb produces an electric field of \[2.9\text{ }V{{m}^{-1}}\]at a point 3 m away. If the bulb is replaced by 400 W bulb without distributing other conditions, then the electric field produced at the same point is

A)  \[2.9\text{ }V{{m}^{-1}}\]        

B)         \[3.5\text{ }V{{m}^{-1}}\]

C)  \[5\text{ }V{{m}^{-1}}\]              

D)         \[5.8\text{ }V{{m}^{-1}}\]

E)  \[\text{1}\text{.45 }V{{m}^{-1}}\]