Home
Class 12
PHYSICS
Two resistors with temperature coefficie...

Two resistors with temperature coefficients of resistance `alpha_1` and `alpha_2` have resistances `R_(01)` and `R_(02) ` at `0^@C`. Find the temperature coefficient of the compound resistor consisting of the two resistors connected.
a.. In series and
b. in paralllel

A

`(R_(1)alpha_(1)+R_(2)alpha_(2))/(R_(1)+R_(2))`

B

`(alpha_(1)+alpha_(2))/(2)`

C

`(2alpha_(1)alpha_(2))/(alpha_(1)+alpha_(2))`

D

`(R_(1)alpha_(2) + R_(2)alpha_(1))/(R_(1)+R_(2))`

Text Solution

Verified by Experts

The correct Answer is:
D
Promotional Banner

Topper's Solved these Questions

  • CURRENT ELECTRICITY

    AAKASH SERIES|Exercise LECTURE SHEET (EXERCISE- II LEVEL- II (ADVANCED) (Straight Objective Type Questions))|11 Videos

  • CURRENT ELECTRICITY

    AAKASH SERIES|Exercise LECTURE SHEET (EXERCISE- II LEVEL- II (ADVANCED) (Linked Comprehension Type Questions))|2 Videos

  • CURRENT ELECTRICITY

    AAKASH SERIES|Exercise LECTURE SHEET (EXERCISE-I LEVEL- II (ADVANCED) (More than one correct answer type Questions))|3 Videos

  • CURRENT ELECTRICITY

    AAKASH SERIES|Exercise PROBLEMS (LEVEL-II)|27 Videos

  • DUAL NATURE OF RADIATION AND MATTER

    AAKASH SERIES|Exercise PRACTICE EXERCISEX|42 Videos

Similar Questions

Explore conceptually related problems

The temperature coefficient of resistance of an alloy used for making resistor is

Two equal resistance at 0^(@)C with temperature coefficient of resistance alpha_(1) and alpha_(2) joined in series act as a single resistance in a circuit the temperature coefficient of their single resistance will be

Two wires of resistance R_(1) and R_(2) have temperature coefficient of resistance alpha_(1) and alpha_(2) respectively. These are joined in series. The effective temperature coefficient of resistance is

Two wires of resistance R_(1) and R_(2) have temperature coefficient of resistance alpha_(1) and alpha_(2) respectively. These are joined in series. The effective temperature coefficient of resistance is

Two resistors with temperature coefficient of 3 resistances 4*10^-3 /°C and 2*10^-3 /°C have of resistances 20 Omega and 10 Omega respectively at 0 °C. If they are connected in series, then equivalent temperature coefficient of resistor combination is

Two conductors have the same resistance at 0^@C but their temperature coefficient of resistanc are alpha_1 and alpha_2 . The respective temperature coefficients of their series and parallel combinations are nearly

Resistance of a resistor at temperature t^@C is R_t =R_0 (1+alphat + betat^2) , where R_0 is the resistance at 0^@C . The temperature coefficient of resistance at temperature t^@C is

The temperature coefficient of resistance of conductor varies as alpha(T) = 3T^2 +2T. If R_0 is resistance at T = 0and R is resistance at T, then

Give any four precautions taken by a student to perform an experiment to determine the resultant resistance of two resistors when connected in series.

Give any four precautions taken by a student to perform an experiment to determine the resultant resistance of two resistors when connected in series.