The cruise control stops working when the vehicle is being driven over bumpy roads but works normally on smooth roads. Technicia
n A says that the brake switch could be misadjusted. Technician B says that this is a normal safety device to prevent the driver from speeding while traveling over bumpy roads. Which technician is correct? A. Technician A only
B. Technician B only
C. Both A and B
D. Neither A nor B
The conductivity of metals decreases with increasing temperature because of thermal agitation of the conduction electrons, which impedes their movement in response to an electric field and therefore lowers the drift velocity.