How can we alter a frequency of ring of an electric bell? Share with your friends Share 0 Dinesh Pandey answered this Dear Student, The frequency of the sound from the bell depends on the electromagnetic force or electromagnet strength. It is dependent on the current. The current depends on the battery. Higher the potential of the battery is, higher the current is. Higher will be the frequency. It also depends (directly proportional) on the number of windingsand around electromagnet and on the material of electromagnet. 1 View Full Answer