Home
Class 12
PHYSICS
A carbon and an aluminium wire are conne...

A carbon and an aluminium wire are connected in series. If the combination has resistance of `30Omega` at `30^@C`, what is the resistance of each wire at `0^@C`so that resistance of the combination does not change with temperature.`(a_c=-0.5 times 10^-3//^@C,a_A=4 times 10^-3//^@C`)

A

`10Omega,80Omega`

B

`80/3Omega,10/3Omega`

C

`40/3Omega,80/3 Omega`

D

`40Omega,80Omega`

Text Solution

AI Generated Solution

Promotional Banner

Similar Questions

Explore conceptually related problems

A carbon and an aluminimum wire are connected in series.If the combination has resistance of 27 ohm at 0^(@)C ,what is the resistance of each wire at 0^(@)C so that the resistance of the combination does not change with temperature ? [alpha_(C ) = -0.5 xx 10^(-3)(.^@C)^(-1) and alpha_(A) = 4 xx 10^(-3)(.^@C)^-1] .

A carbon and an aluminium wire are connected in series . If the combination has equivalent resistance of 90 Omega at 0°C, the value of the resistance of each wire at 0°C so that the resistance of combination does not change with temperature is ( alpha_c=-0.5×10^(-3)°C^(-1) and alpha_Al=-4×10^(-3)°C^(-1) )

carbon and an aluminimum wire are connected in series.If the combination has resistance of 30Omega at 0^(@)C .The ratio of resistance of aluminimum to carbon at 0^(@)C is x then x= (Here the resistance of combination does not change with temperature) Take alpha_(c)=-0.5times10^(-3) /^(@)c;alpha_(A)=4times10^(-3) /^(@)C

A wire has a resistance of 3.1 Omega at 30°C and a resistance 4.5 Omega at 100°C. The temperature coefficient of resistance of the wire

The resistance of a wire is 5 ohm at 50^@C and 6 ohm at 100^@C . The resistance of the wire at 0^@C will be

A coil of wire has a resistance of 25.00Omega at 20^@ C and a resistance of 25.17Omega at 150^@C . What is its temperauture cofficient of resistance?

A copper coil has resistance of 20.0 Omega at 0^@C and a resistance of 26.4 Omega at 80^@C . Find the temperature coefficient of resistance of copper.

A carbon filament has resistance of 120Omega at 0^(@)C what must be te resistance of a copper filament connected in series with resistance at all temperature (alpha_("carbon")=(-5xx10^(-4))/( ^(@)C),alpha_("copper")=(4xx10^(-3))/( ^(C))

A plantinum wire has resistance of 10 Omega at 0^(@)C and 20 Omega at 273^(@)C . Find the value of coefficient of resistance.