Global Journal of Science Frontier Research, A: Physics and Space Science, Volume 22 Issue 1

i. Materials Table 3: List and description of the materials used in the experiment Materials Properties 1 winding made with a 144 turn winding. screw and copper wire Wire with a diameter of (5.7 ± 5) × 10 -4 m. Stainless steel screw hex head with the weight of 12 g ± 0.0005 g length (4.9 ± 0.05) × 10 -2 m 4 alligator cables 2 banana to alligator cables 4 cables for multimeter 1 vernier calliper Absolute uncertainty of ± 5 × 10 -4 m. 1 universal bracket 1 three-prong clamp with clip 1 double nut belay 1 IRT-BTA Vernier Infrared Thermometer ± 273 K absolute uncertainty 2 ceramic power resistors Power of 5W and resistivity of 1Ω 1 stainless steel hex nut Internal diameter of (1 ± 0.05) × 10 -2 m and weight of 15 ± 0.0005 g 2 multimeters ± 0.01 V absolute uncertainty 1 heating plate 1 HP 6236B Triple Output Power Supply Constant voltage source with overload protection with nominal power, or maximum power, from 0 to + 6V and with a nominal capacity of 2.5A. 1 masking tape 1 breadboard 1 pair of scissors 1 grain scale Absolute uncertainty of ± 0.0005g ii. Experimental design a. Making and assembling the winding 1. The copper wire is wound around the screw, ensuring that the wire remains firm and leaving its two ends free on each side, with a certain length to spare. 2. The plastic covering is removed from the two ends with the scissors, taking care not to damage the copper part. 3. The winding is held firmly with the three-prong clamp. Relationship between Temperature and the Holding Force of an Electromagnet in a Changing Magnetic Field © 2022 Global Journals 1 Year 2022 16 Global Journal of Science Frontier Research Volume XXII Issue ersion I VI ( A )