For a medium-well steak, the FDA recommends steak to be cooked to the temperature of 145 degrees F. Q. If the steak weighs 1 Ib, with an initial temperature of 45 degrees F, specific heat of 0.66 (btu/lb) degrees F, and resistance of 365 ohms, what is the voltage that should be applied to reach the desired temperature for the steak to be medium-well?
Q: A person notices a mild shock if the current along a path through the thumb and index finger exceeds…
A: V = IR
Q: A teapot with a surface area of 715 cm is to be plated with silver. It is attached to the negative…
A: Surface area (A) = 715 cm2Potential difference of the battery (V) = 12 volts Resistance (R) = 1.5…
Q: What current (in A) must be produced by a 12.0 V battery-operated bottle warmer in order to heat…
A: Given data: Potential difference ΔV= 12 V Mass of glass mg=74 g=0.074 kg Specific heat of the glass…
Q: 17.2 A given copper wire has a resistance of 5.18 Ω at 20.0°C while a tungsten wire of the same…
A:
Q: What current (in A) must be produced by a 12.0 V battery-operated bottle warmer in order to heat…
A: Mass of glass = 70 g Mass of baby formula = 200 gMass of aluminum = 350 g Initial temperature = 20oC…
Q: An engineering intern is studying the effect of temperature on the resistance of a current carrying…
A: Consider the first case, initial temperature, T = 20 oC Final temperature, T1 = 54 oC Change in…
Q: Digital medical thermometers determine temperature by measuring the resistance of a semiconductor…
A:
Q: A common flashlight bulb is rated at 0.30A and 2.9V (the values of the current and voltage under…
A: See below
Q: n electronic device designed to operate at any temperature in the range from -17.6°C to 57.9°C…
A: The relation between resistance and temperature is given by:- ∆R= Rα∆T Where; ∆R= change in…
Q: (a) A well-insulated electric water heater warms 125 kg of water from 20.0°C to 53.0°C in 33.0 min.…
A:
Q: A platinum wire has a resistance of 79.6 ohms at 28oC. At what temperature will the resistance of…
A: initial temperature = t1 = 280 c initial resistance = R1 = 79.6 Ohms final temperature = t2 = ?…
Q: The rear window of a van is coated with a layer of ice at 0°C. The density of ice is 917 kg/m³, and…
A: Answer : 0.25mm Solution -
Q: To what temperature must you raise a gold wire (c = 0.0034), originally at 20.0°C, to double its…
A:
Q: The heating element of a coffeemaker operates at 120 V and carries a current of 5.00 A. Assuming the…
A: Given data:The operating voltage of a coffee maker is V = 120 V.The current carried by the coffee I…
Q: Calculate the current through a 10.0 m long nichrome wire with a diameter of 0.642 mm if it is…
A: Given data *The length of the nichrome wire is l = 10.0 m *The diameter of the wire is d = 0.642 mm…
Q: A physics student is studying the effect of temperature on the resistance of a current carrying…
A:
Q: What current (in A) must be produced by a 12.0 V battery-operated bottle warmer in order to heat…
A:
Q: The label on a battery-powered radio recommends the use of a rechargeable nickel-cadmium cell…
A:
Q: person notices a mild shock if the current along a path through the thumb and index finger exceeds…
A: V = IR
Q: •21 ILW A common flashlight bulb is rated at 0.30 A and 2.9 V (the values of the current and voltage…
A: Operating resistance of the bulb is R=VI=2.9 V0.3 A=9.67Ω
Q: A copper wire has a resistance of 0.505 Ω at 20.0°C, and an iron wire has a resistance of 0.537 Ω at…
A:
Q: A copper wire has a resistance of 0.400 Ω at 20.0°C, and an iron wire has a resistance of 0.426 Ω at…
A: To determine: The temperature at which the resistance of the copper and iron will be equal Given:…
Q: e same wire at -88.0°C, what current should she expect (in A)? The temperature coefficient of…
A:
Q: 13. A very long straight, cylindrical wire lying along the x axis has a diameter of 0.250 mm and is…
A:
Q: nce of 0.49 Ω at 20.0°C, and an iron wire has a resistance of 0.57 Ω at the same temperature. a)…
A: We know that we have given that the A copper wire has a resistance of 0.49 Ω at 20.0°C, and an iron…
Q: A teapot with a surface area of 790 cm2 is to be plated with silver. It is attached to the negative…
A:
Q: A 12.0 V emf automobile battery has a terminal voltage of 16.8 V when being charged by a current of…
A: Emf , e = 12 V Terminal voltage , V = 16.8 V Current , I = 11 A mass , m = 20 kg Power , P = 52.8 W…
Q: A copper wire has a resistance of 0.51 Ω at 20.0°C, and an iron wire has a resistance of 0.57 Ω at…
A:
Q: The heating element of a coffeemaker operates at 120 V and carries a current of 4.50 A. Assuming the…
A: Operating voltage V= 120 V Current I = 4.50 A Power rating is given by P = VI P = 120×4.50 W P = 540…
Q: A copper wire has a resistance of 0.375 2 at 20.0\deg C, and an iron wire has a resistance of 0.400…
A:
Q: A platinum resistance thermometer has a resistance R0 = 50 Ω at atemperature To of 20 °C. The…
A: The objective of the question is to find the temperature of the liquid tin using the given…
Trending now
This is a popular solution!
Step by step
Solved in 5 steps
- (a) Of what material is a wire made, if it is 20.0 m long with a 0.110 mm diameter and has a resistance of 33.5 at 20.0°C? copper gold platinum silver (b) What is its resistance (in Q) at 140°C? 47.17A gold wire has a length of 23.0 m and a resistance of 4.70 Ω at 20.0°C. Assuming a circular cross-section, what is the wire's diameter (in mm)? The resistivity of gold at 20.0°C is 2.44 ✕ 10−8 Ω · mA person notices a mild shock if the current along a path through the thumb and index finger exceeds 78 µA. Compare the maximum possible voltage without shock across the thumb and index finger with a dry-skin resistance of 3.0 ✕ 105 and a wet-skin resistance of 2000 . dry skin V wet skin V
- A portable coffee heater supplies a potential difference of 12.0 V across a Nichrome heating element with a resistance of 1.92 Ω. (a) Calculate the power (in W) consumed by the heater. W (b) How many minutes would it take to heat 1.13 kg of coffee from 20.6°C to 46.2°C with this heater? Coffee has a specific heat of 4184 J (kg · °C) . Neglect any energy losses to the environment. minA silver wire has a resistance of 2.00 Ω at 34.0°C. Determine its resistance (in Ω) at 434°C. The temperature coefficient of resistivity for silver wire is 3.80 ✕ 10−3 (°C)−1. (Assume that the temperature coefficient of resistivity was measured using the reference temperature 20°C.)A carbon resistor is to be used as a thermometer. On a winter day when the temperature is 4.00∘C, the resistance of the carbon resistor is 217.1 Ω . What is the temperature on a spring day when the resistance is 215.1 Ω ? Take the temperature coefficient of resistivity for carbon to be α = −5.00×10−4 C-1 .
- Question 3: A platinum resistance thermometer is a device that allows us to determine the temperature by measuring the resistance of a piece of pure platinum wire. In the interval between the freezing point of water and 700.0°C, the relationship between the resistance and the Celsius temperature Tc is accurately captured by the formula R = Ro (1 + A Tc + B (Tc)²) where A and B are constants determined by measurements at the ice point of water, the steam point of water, and the melting point of zinc (419.514°C). (a) If R equals 10.000 ohms at the freezing point of water, 13.946 ohms at the boiling point of water, and 24.174 ohms at the melting point of zinc, find RO, A, and B (b) If the resistance is measured to be 17.7 ohms, what is the temperature? (c) Plot R versus Tc in the range from 0°C to 700.0°C. Math tip: When we have several equations for several unknown variables, we can use the first equation to solve for one of the variables in terms of the others and then replace that…An engineering intern is studying the effect of temperature on the resistance of a current carrying wire. She applies a voltage to a aluminum wire at a temperature of 53.0°C and notes that it produces a current of 1.10 A. If she then applies the same voltage to the same wire at -88.0°C, what current should she expect (in A)? The temperature coefficient of resistivity for aluminum is 3.90 x 10-³ (°C)-¹. (Assume that the reference temperature is 20°C.) A