The wires leading to and from a 0.12 mm diameter lightbulb filament are 1.5 mm in diameter. The wire to the filament carries a current with a current density 4.5 X 105 A/m2. What are (a) current and the (b) current density in the filament

No because scientist are still changing there mines today so they are not correct to this day

Sorry i don’t know what to do

Supply is the markets term for selling a specific quantity of products at various prices. the law of supply and demand is the one which affect the pricing and also the quantity the market is able to produce or make available.

The answer is 4f======since electrostatic force is given by    we let f be the electrostatic force when  r = 1 m    if we let  denote the electrostatic force when the distance is decreased so that r = 0.5m, then    we established earlier that f = kq₁q₂. therefore    the force will now be 4f.