It can be the burner and you may be able to check it like woodchuck said but the switches go bad a lot more often on glass tops. To check the burner first disconnect power then remove the back of the range to access the back of the switch. Once off, look at the back of the switch to the burner thats not working. You should see two wires marked H1 and H2 remove them. Then using an ohmmeter see if you have continuity between the two wires that you just removed. If you do the burner is ok, replace the switch.