An electric toaster uses nichrome for it...

An electric toaster uses nichrome for its heating element. When a negligibly small current passes through it. It resistance at room temperature `(27.0^@C)` is found to be `75.3Omega`. When the toaster is connected to a `230 V` supply, the current settles, after a few seconds, to a steady value of `2.68 A`. What is steady temperature of the nichrome element? The temperature coefficient of resistance of nichrome averaged over the temperature range involved , `1.70xx10^-4C^-1`

Text Solution

Verified by Experts

The correct Answer is:

`847^(@)C`

Topper's Solved these Questions

CURRENT ELECTRICITY
SL ARORA|Exercise Problems From Competitive|18 Videos
CHEMICAL EFFECT OF CURRENT
SL ARORA|Exercise TYPE-B|5 Videos
ELECTRIC POTENTIAL AND ELECTRIC FLUX
SL ARORA|Exercise Problems for self practive|61 Videos

Similar Questions

Explore conceptually related problems

The heating element of an electirc toaster is of nichrome. When a vary small current passes through it, at room temperrature 27^@C , its resistance is 75.3Omega . When 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 nichrome element? The temperature coefficient of resistance of nichrome over averged temperature range is 1.7xx10^(-4)^(@)C^(-1) .

A heating element using nichrome connected to a 230 V supply draws an initial current of 3.2 A which settles after a few seconds to a steady value of 2.8 A. What is the steady temperature of the heating element if the room temperature is 27^(@)C ? Temperature coefficient of resistance of nichrome averaged over the temperature range involved is 1.70xx10^(-4) C^(-1) .

A heating element using nichrome connected to a 115 V supply draws a current of 1.6A which settles after a few seconds to a steady value of 1.4 A. What is the steady temperature of the heating element if the room temperature is 30^@C ? Temperature coefficient of resistance of nichrome averaged over the temperature range involved is 1.7xx10^(-4).^(@)C^(-1) .

A heating element using nichrome connected to a 230 V supply draws a initial current of 3.2 A which settles after a few seconds to a steady value of 2.8 A. What is the steady temperature of the heating elemtn if the room temperature is 27.0^(@)C ? Temperature coefficient of resistance of nichrome of nichrome averaged over the temperature range involved is 70xx10^(-4)C^(-1)

The resistance of wire in a heater at roo temeperature is 65Oemga . When the heater is connected to a 220V supply the current settles after a few seconds to 2.8A. What is the steady temperature of the wire. (Temperature coefficient of resistance alpha=1.70xx10^(-4) ^(@).C^(-) )

Out of copper and nichrome, which has the larger value of temperature coefficient of resistance?

SL ARORA-CURRENT ELECTRICITY-Problems For Self

A platinum resistance thermometer makes use of the variation of a cond...
Text Solution
|
The temperature coefficent of resistance of a wire is 0.00125 per .^(@...
Text Solution
|
An electric toaster uses nichrome for its heating element. When a negl...
Text Solution
|
A nichrome heating element connected to a 200 V supply draws an intial...
Text Solution
|
A standard coil marked 3 Omega is found to have a true resistance of 3...
Text Solution
|
The resistance of a silver wire at 0^(@)C " is " 1.25 Omega. Upto what...
Text Solution
|
The resistance of a coil used in a platinum-resistance thermometer at ...
Text Solution
|
The temperature coefficient of a resistance wire is 0.00 12^(@)C^(-1)....
Text Solution
|
The temperature coefficient of copper is 0.004^(@)C^(-1). Find the res...
Text Solution
|
Three resistors of 1 Omega, 2 Omega " and " 3 Omega are combined in se...
Text Solution
|
(i) Three resistors 2 Omega, 4 Omega " and " 5 Omega are comined in pa...
Text Solution
|
How can the resistances of 2Omega, 3 Omega " and " 6 Omega be connecte...
Text Solution
|
Given three resistances of 30 Omega each. How can they be connected to...
Text Solution
|
A 5 Omega resistor is connected in series with a parallel combination ...
Text Solution
|
A uniform wire which connected in parallel with the 2 m long wire, wil...
Text Solution
|
The resistance of two conductors in series is 18 Omega and the resista...
Text Solution
|
A wire whose resistance is 90 ohm is cut into 3 pieces of equal length...
Text Solution
|
When a current of 0.5 A is passed through two resistances in series, t...
Text Solution
|
Two wires a and b, each of length 40 m and area of cross-section 10^(-...
Text Solution
|
Calculate the equivalent resistance between points A and B in each of ...
Text Solution
|