Temperature Dependence of Resistance

JEE Main Physics · Current Electricity · 8 questions, latest first

• Which of the following resistivity ( ρ ) v / s temperature ( T ) curves is most suitable to be used in wire bound standard…202522 January, Shift 1 · Q36
• At room temperature ( 27^° C ), the resistance of a heating element is 50 Ω. The temperature coefficient of the material is 2.4 ×…20249 April, Shift 2 · Q55
• Resistance of a wire at 0^° C, 100^° C and t^° C is found to be 10 Ω, 10.2 Ω and 10.95 Ω respectively. The temperature t in…20248 April, Shift 1 · Q56
• The resistances of the platinum wire of a platinum resistance thermometer at the ice point and steam point are 8 Ω and 10 Ω…20244 April, Shift 1 · Q41
• To measure the temperature coefficient of resistivity α of a semiconductor, an electrical arrangement shown in the figure is…20241 February, Shift 2 · Q49
• Two conductors have the same resistances at 0^° C but their temperature coefficients of resistance are α_1 and α_2. The…202431 January, Shift 1 · Q41
• An electric toaster has resistance of 60 Ω at room temperature (27^° C). The toaster is connected to a 220 V supply. If the…202430 January, Shift 1 · Q41
• The current flowing through a conductor connected across a source is 2 A and 1.2 A at 0^° C and 100^° C respectively. The current…202312 April, Shift 1 · Q57