Two conductors have the same resistane at `o^@C` but their temperature coefficiencts of resistance are `alpha_1 and alpha_2`. Find the repective temperature coefficients of their series and parallel combinations.

At 0^(@)C the resistance of conductor of a conductor B is n times that of condoctor A temperature coefficient of resistance for A and B are alpha_(1) and alpha_(2) respectively the temperature coefficient of resistance of a circiut segment constant A and B in series

A wire has a resistance of 10.5Omega at 21^@C and 16.4Omega at 147^@C . Find the value of temperature coefficient of resistance.

A wire has a resistance of 3.1 Omega at 30^@C and a resistance of 4.5 Omega at 100^@C . The temperature coefficient of the wire is equal to

A wire has a resistance of 3.1Omega at 30^@C and a resistance of 4.5Omega at 100^@C . The temperature coefficient of the wire is equal to

Two conducting wires of the same material and of equal length and equal diameters are first connected in series and then in parallel in an electric circuit. The ratio of heat produced in series and parallel combination would be (a) 1:2 (b)2:1 (c)1:4(d)4:1

At room temperature (27.0 ^@C) the resistance of a heating element is 100Omega . What is the temperature of the element if the resistance is found to be 117Omega . given that the temperature coefficient of the material of the resistor is 1.70 xx 10^-4 ^@C^-1 .

At room temperature (27.0^@ C) the resistance of a heating element is 100 Omega . What is the temperature of the element if the resistance is found to be 117 Omega , given that the temperature coefficient of the materials of the resistors is 1.70 xx 10^-4 ^@C^-1 ?