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of what material is a resistor made if its resistance is 41.8% greaterat 130°C than at...
A resistor made of Nichrome wire is used in an application where its resistance cannot change more than 1.05% from its value at 20.0°C. Over what temperature range can it be used in °C)? lowest temperature °C highest temperature oC
A resistor made of Nichrome wire is used in an application where its resistance cannot change more than 1.30% from its value at 20.0°C. Over what temperature range (in oC) can it be used? Enter the smaller value in the first box. From -57.5 degC to 97.5 degc Submit Answer Incorrect. Tries 1/10 Previous Tries
stuck on these 2 questions 1. A resistor made of Nichrome wire is used in an application where its resistance cannot change more than 2.53% from its value at 20.0°C. What is the highest temperature at which this resistor can be reliably used? The temperature coefficient of resistivity for Nichrome is 0.4 ✕ 10−3 (°C)−1. 2. An electronic device designed to operate at any temperature in the range from −9.9°C to 78.7°C contains pure carbon resistors. What is the percent...
Materials Reading (a) Of what materal is a wire made, if is 20.0 m long with a 0.140 mm diameter and has a resistance of 22.3 at 20.0C O copper O silver gold (b) What is its resistance (in Q) at 1709C7 Additional Materials a Reading Submit Answer Seve Progress Pracice Another Version Submit Assignment Save Assignment Progress Home My Assignements Extension Request acBook Air
15. The resistance of an 8.3-m-long, 0.50-mm-diameter wire is 4.1 2. From what material is this wire likely made? A. Copper B. Aluminum C. Iron D. Nichrome
t 2o.o°c. over what temperat ange (in c) can it be esistor made of Nichrome wire is used in an application where its resistance cannot change more than 0.70% from its value at 20.0。C. Over what temperature range (in °C) can it be used? Enter the smaller value in the first box. From to
A 0.240 kg block of a pure material is heated from 20.0°C to 68.4°C by the addition of 5.25 kJ of energy. Calculate its specific heat (in J/(kg · °C)). J/(kg · °C) Identify the substance of which it is most likely composed. gold copper glass iron ОО silver +
A certain toaster has a heating element made of Nichrome resistance wire. When the toaster is first connected to a 130-V source of potential difference (and the wire is at a temperature of 20.0°C), the initial current is 1.70 A, but the current begins to decrease as the resistive element warms up. When the toaster reaches its final operating temperature, the current has dropped to 1.53 A. (a) Find the power the toaster converts when it is at its operating...
3.b. You have three identical ohmic resistors, and all of the
following statements are true: – Each resistor is a (right)
cylinder of material with a mass of 0.0559 g. And each resistor
just fits into its own individual rectangular packaging box, which
has inner dimensions of 1.00 x 1.00 x 31.416 (lengths in mm). – If
the three resistors are connected to a certain constant-voltage
ideal battery (i.e. it has no internal resistance) so that the
minimum possible total...
In order to double its resistance, by how much would you have to increase the temperature of a piece of the following? (a) copper (The temperature coefficient of resistance for copper is 3.9 x 10-3 (oc)-1.) oC (b) Nichrome (The temperature coefficient of resistance for Nichrome is 4.0 x 10-4 (°c)-1.) OC