A cable for use in connection with an electrical apparatus comprising: a proximal end configured to be electrically coupled with a processing unit of the electrical apparatus and a distal end configured with or to be electrically coupled to one or more electrical components used with the electrical apparatus; the cable including a component conductor (210a-210d) for each said electrical component configured to carry an electrical current between the electrical component and the processing unit ; and the cable including an inductor coil embedded in the distal end of the cable and an inductor coil conductor configured to carry a signal from the processing unit to the inductor coil whereby a continuity signal can be transmitted via the processing unit through the cable such that the continuity signal is imparted by the inductor coil to the component conductor (210a-210d) with respect to each said electrical component and carried back to the processing unit to indicate proper connectivity of the electrical current with respect to each said electrical component, wherein the electrical apparatus is a medical apparatus, wherein the one or more electrical components are one or more sensors used with the medical apparatus; wherein the component conductor (210a-210d) is a sensor signal conductor for each sensor and is configured to carry a signal from the sensor to the processing unit ; and whereby during a medical procedure, the continuity signal is transmitted via the processing unit through the cable such that the continuity signal is imparted by the inductor coil to the sensor signal conductor (210a-210d) with respect to each sensor and carried back to the processing unit to indicate proper connectivity of the sensor signal with respect to each sensor . a proximal end configured to be electrically coupled with a processing unit of the electrical apparatus and a distal end configured with or to be electrically coupled to one or more electrical components used with the electrical apparatus; the cable including a component conductor (210a-210d) for each said electrical component configured to carry an electrical current between the electrical component and the processing unit ; and the cable including an inductor coil embedded in the distal end of the cable and an inductor coil conductor configured to carry a signal from the processing unit to the inductor coil whereby a continuity signal can be transmitted via the processing unit through the cable such that the continuity signal is imparted by the inductor coil to the component conductor (210a-210d) with respect to each said electrical component and carried back to the processing unit to indicate proper connectivity of the electrical current with respect to each said electrical component, wherein the electrical apparatus is a medical apparatus, wherein the one or more electrical components are one or more sensors used with the medical apparatus; wherein the component conductor (210a-210d) is a sensor signal conductor for each sensor and is configured to carry a signal from the sensor to the processing unit ; and whereby during a medical procedure, the continuity signal is transmitted via the processing unit through the cable such that the continuity signal is imparted by the inductor coil to the sensor signal conductor (210a-210d) with respect to each sensor and carried back to the processing unit to indicate proper connectivity of the sensor signal with respect to each sensor . <EOS>