A cooking smoker, used to cook meats, works allowing the warm air filled with smoke to rise to the meat, while the cooler air sinks closer to the fire. What type of heat transfer is responsible for smoking the meat?

Sort the images based on whether there's a force of attraction or repulsion between the magnets shown. attraction repulsion

Acoil suspended freely, points in some direction when no current is passed through it . can you tell what will happen when a current is passed though it?

Currents in dc transmission lines can be 100 a or higher. some people are concerned that the electromagnetic fields from such lines near their homes could pose health dangers. for a line that has current 150 a and a height of 8.0 m above the ground, what magnetic field does the line produce at ground level? express your answer in teslas and as a percentage of the earth’s magnetic field, which is 0.50 g. is this value cause for worry?