An incandescent bulb is supplied with 100 J of energy every second and
transfers 5 J of energy by light
Calculate the efficiency of the bulb.

I need some help can you explain this to me please and thank you

Efficiency = 5%

Explanation:

Given that,

Supplies energy to the bulb = 100 J

Transferred energy by the bulb = 5 J

We need to find the efficiency of the bulb. It can be given by "

So, the efficiency of the bulb is 5%.

a charge 3q is at the origin, and a charge −2q is on the positive x axis at x=a. part a where on the x-axis would you place a third charge so it would experience no net electric force? enter an expression for the exact answer, which will involve a square-root sign. (do not enter an approximate decimal answer.)

i don't understand. explain it clearly