Calculate that electric field that will apply a force of 25,000 n to an electron.

Explanation:

Given that,

Electric force applied to the electron,

Charge on electron,

We need to find the electric force acting on the electron. The electric field is given by :

So, the electric field acting on the electron is . Hence, this is the required solution

5 w for 1hr = 5x60x60 joules=300x60=3000x6=18,000j as total energy conversion. efficiency of bulb needed for radiant to thermal within 18000