Elements run in the range of 14 -20 ohms. Most stoves use a switch that turns on and off different amounts from 100% at high to 10% on low. If the element heats at all is probably good.. On real old stoves that had push button controls the element had three different sections, all got 240 on high, one section 240 on 2, 240 with elements in series on 3, 120 on all on 4 and 120 on one on low. Those went away about 30 years ago. If it is slow to heat, check the connections at the element and replace the switch if nothing is wrong with the connections.