Home
Class 12
PHYSICS
An electric toaster uses nichrome for it...

An electric toaster uses nichrome for its heating element. When a negligibly small current passes through it, its resistance at room temperature `(27.0^@C` is found to be `75.3Omega` When the toaster is connected to a 230V supply, the current settles, after.a few seconds, to a steady value of 2.68A. What is the steady temperature of the nichrome element ? The temperature coefficient of resistance averaged over the temperature range involved, is `1.70xx10^(-4)//C^@`

Promotional Banner

Similar Questions

Explore conceptually related problems

A heating element using nichrome connected to a 230V supply draws an inital current of 3.2A which settles after a few seconds to a steady value of 2.8A. What is the steady temperature of the heating eleipent if the room temperature is 27.0^@C ? Temperature coefficient of resistivity of nichrome averaged over the temperature range involved is 1.70xx l0^(-4)//C^@ .

What is the unit of temperature coefficient of resistance?

A heating element using nichrome connected to a 230 V supply draws an initial current of 3.2A which settles after a few seconds to a steady value of 2.8A. What is the stready temperature of the heating element if the room temperature is 27^@C ? Temperature coefficient of resistance of nichrome averages over the temperature range involved is 1.70times10^(-4^@)C^-1 .

What is the nature of temperature coefficient of resistance of a semiconductor?

Of metals and alloys,which has greater value of temperature coefficient of resistance?

Name any one material having a small value of temperature coefficient of resistance.Write one use of this material.

At what temperature the resistance of a copper wire will become three times its value at 0^@C ? Temperature coefficient of resistance for copper 4xx10^(-3)//C

The resistance of a copper wire at 20^@C is 3 Omega and at 100^@ is 3.94 Omega .Determine the temperature coefficient of resistance of copper.

How much current does a Geyser rated 2 KW draw when connected to 230V supply?