1. Department of Physics; Arts and Science Faculty, Nevsehir Haci Bektas Veli University; Nevsehir 50300 Turkey
2. Department of Physics; Science Faculty, Erciyes University; Kayseri 38039 Turkey
3. Department of Electricity and Energy; Kayseri Vocational School, Erciyes University; Kayseri 38039 Turkey
4. Department of Physics; Arts and Science Faculty, Kirikkale University; Kirikkale 71450 Turkey