The generation currents are not strongly altered by externally applied electric fields. However, applied electric fields can affect the drift current. If the applied field increases the potential of the p-type material, then holes are pushed away toward the n-type side more readily, and electrons are drawn away from the n-type side more readily. What would happen if the field increased the potential of the n-type side, instead

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?