Một dây dẫn dài 100m ,tiết diện 2mm2 có điện trở 12 ôm. Tìm chiều dài của 1 dây đồng chất khác có tiết diện S2=0.4mm2 có điện trở gấp 5 lần điện trở dây 1

Tafari worked one summer on a ship that set weather buoys in the ocean. he watched how one of the buoys moved in the water. describe which parts of the wave would cause the buoy to bob up and down. which wave property determined how fast the buoys bobbed in the water? he observed that when the wind blew harder, the ocean waves were larger, and the buoys moved away from the ship. what effect, if any, did the waves have on how far the buoys moved? explain your answer.

What is special about a dc circuit ?

Can you receive a shock severe enough to prevent you from releasing the wire from an ordinary outlet with dry hands? a. no b. yes explain