A resistance `R_(1)` of thermal coefficient of resistivity a is connected in parallel with resistance `R_(2)` having thermal coefficient of resistivity 3a .If the value of effective thermal coefficient of resistivity is `(7 alpha)/(3)` , then value of `(R_(1))/(R_(2))` is

A resistance R of therimal coefficient of resistivity alpha is connected in parallel with a resistance 3R. Having thermal coeffiecinet of resistivity 2alpha Find the value of alpha_(eff)

What is the value of the resistance R_(1) in the following circuit ?

If resistors of resistance R_(1) and R_(2) are connected in parallel,then resultant resistance is "

If a resistance R_(2) is connected in parallel with the resistance R in the circuit shown, then possible value of current through R and the possible value of R_(2) will be

A wire of cross-section area A , length L_(1) , resistivity rho_(1) and temperature coefficient of resistivity alpha_(1) is connected in series to a second wire of length L_(2) , resistivity rho_(2) temperature coefficient of resistivity alpha_(2) and the same area A , so that wires carry same current. Total resistance R is independent of temperature for small temperature change if (Thermal expansion effect is negligible)

Coefficient of linear expnsion of material of resistor is alpha . Its temperature coefficient of resistivity and resistance are alpha_(p) and alpha_(R) respectively , the correct relation is .

A resistance R_(2) is connected in parallel with a resistance R_(1) what resistance R_(3) must be connected in series with the combination of R_(1) and R_(2) so that the equivalent resistance is equal to the resistance R_(1) -

Two resistors of resistance R_(1) and R_(2) having R_(1) gt R_(2) are connected in parallel. For equivalent resistance R, the correct statement is

Resistance R,2R,4R,8R ...... oo are connected in parallel. What is their resutlant resistance will be