Home
Class 12
PHYSICS
The temperature coefficient of resistanc...

The temperature coefficient of resistance of a wire is `0.00125` per `""^(@)C`. At 300 K, its resistance is `1Omega`. The resistance of the wire will be `2Omega` at

A

(a)1154K

B

(b)1100K

C

(c)1400K

D

(d)1127K

Text Solution

AI Generated Solution

To solve the problem, we will use the formula that relates resistance and temperature: \[ R = R_0 (1 + \alpha (T - T_0)) \] Where: - \( R \) is the resistance at temperature \( T \) - \( R_0 \) is the resistance at a reference temperature \( T_0 \) - \( \alpha \) is the temperature coefficient of resistance ...
Doubtnut Promotions Banner Mobile Dark
|

Topper's Solved these Questions

  • DC CIRCUIT

    VMC MODULES ENGLISH|Exercise LEVEL-1 JEE MAIN ARCHIVE|93 Videos

  • CURRENT ELECTRICITY

    VMC MODULES ENGLISH|Exercise IN-CHAPTER EXERCISE-F|10 Videos

  • DYNAMICS OF A PARTICLE

    VMC MODULES ENGLISH|Exercise JEE Advance (Archive) Level - II (SINGLE OPTION CORRECT TYPE )|31 Videos

Similar Questions

Explore conceptually related problems

Temperature coefficient of resistance of a wire at 0^(@)C is 0.00125^(@)C^(-1) . At 25^(@)C its resistance is 1 Omega . The resitance of the wire will be 1.2 Omega at

The temperature coefficient of resistance of a wire is 0.00145^(@)C^(-1) . At 100^(@)C its resistance is 2Omega . At what temperature the resistance of the wire be 3Omega ?

The temperature coefficient of resistance of the material of a wire is 0.00125^(@)C^(-1) . Its resistance at 27^(@)C is 1 Omega . At what temperature will its resistance be 2 Omega ?

The electrical resistance of pure platinum increases linearly with increasing temperature over a small range of temperature . This property is used in a Platinum resistance thermometer. The relation between R_(theta) (Resistance at theta K) and R_(0) (Resistance at theta_(0)K ) is given by R_(theta)=R_(0)[1+a(theta-theta_(0))] , where alpha= temperature coefficient of resistance. Now, if a Platinum resistance thermometer reads 0^(@)C when its resistance is 80Omega and 100^(@)C when its resistance is 90 Omega find the temperature at which its resistance is 86Omega .

The resistance of a wire at 20^(@)C is 20Omega and at 500^(@)C is 60Omega . At which temperature its resistance will be 25Omega ?

The resistance of a wire R Omega . The wire is stretched to double its length keeping volume constant. Now, the resistance of the wire will become

The resistance of a wire is 10 Omega . Its length is increased by 10% by stretching. The new resistance will now be

A resistance thermometer measures temperature with the increase in resistance of a wire of high temperature. If the wire is platinum and has resistance of 10Omega at 20^@C and a resistance of 35Omega in a hot furnace, what is the temperature of the hot furnace? (alpha_("platinum") = 0.0036^@C^(-1))

A silver wire has a temperature coefficient of resistivity 4 xx 10^(-3) .^@C^(-1) and its resistance at 20^@ C is 10Omega Neglecting any change in dimensions due to the change in temperature , its resistance at 40^@C is

The resistance of a bulb filamanet is 100Omega at a temperature of 100^@C . If its temperature coefficient of resistance be 0.005 per .^@C , its resistance will become 200 Omega at a temperature of

Home
Profile