Look at the data table and graph for the 25-coil electromagnet. with the 1.5 v battery, the electromagnet picked up an average of 6 paper clips, and with the 6.0 v battery, it picked up an average of 23 paper clips. a. about how many times stronger than the 1.5 v battery is the 6.0 v battery? b. what is the approximate ratio of the number of paper clips picked up using the 6.0 v battery to the number picked up using the 1.5 v battery? c. is this a direct relationship or an indirect relationship? 25-turn electromagnet battery voltage number of paper clips picked up first try second try average 1.5 v 5 7 6 3.0 v 12 12 12 4.5 v 14 17 15.5 6.0 v 20 26 23