When an electric heater is turned on, the Nichrome heating element is at 0° C and draws a current of 14 A, with a potential difference of 120 V between the ends of the element. The element heats up to 730° C, with the potential difference constant. Find the final current. (The temperature coefficient of resistivity of Nichrome is 4.0  10-4 (°C)-1.)

Q: 2- chapter27-question21 A wire of Nichrome (a nickel-chromium-iron alloy commonly used in heating…

A: Given data: Battery Voltage (V) = 2 V Wire cross sectional area (A) = 1 mm2 = 1×10-6 m2 Wire Length…

Q: Particles with a charge of +5e are incident on a target. If the beam of particles carries a current…

A: Given data:  Charge on one particle = +5e Current (I) = 133 μA = 133×10-6 A Time (t) = 18.0 s…

Q: (1) Find the mass of the air at 20°C in a living room with a 3.66 m × 5.45 m floor and a ceiling of…

A: Density is defined as mass per unit volume, d=mVDensity of air at 200C is 1.2kg/m3 Electric force…

Q: Over the course of an 8 hour day, 3.8x104 C of charge A 0.50-W, 220- 2 resistor carries the maximum…

A:

Q: Review For safety reasons, electrical codes have been established that limit the amount of current a…

A: maximum current (i) = 5 A Cross sectional area of wire (A) = 1.17 mm2Using , 1 m = 1000 mm A =…

Q: A total of 2.0 x 1013 electrons pass a given point in a wire in 15 s. What is the current in the…

A:

Q: A certain brand of hotdog cooker works by applying a potential difference of 147 V across opposite…

A:

Q: 1. The quantity of charge q (in coulombs) that has passed a surface of area 2.00 cm² varies with…

A: Given: Surface area = 2.00 cm2 or 2 × 10-4 m2 q = 4t3 + 5t + 6 here t is in seconds. t = 1 s To…

Q: What current flows through the bulb of a 3.00 V flashlight when its hot resistance is 3.60 Q? The…

A:

Q: 9.1 Check Your Understanding Handheld calculators often use small solar cells to supply the energy…

A: Solar cells are also known as photovoltaic cells , which converts sunlight energy to electricity…

Q: Supposed to static charge of 0.23 uC moves from your finger to a metal door knob in 1.15 ms. What…

A:

Q: A platinum wire is used to determine the melting point of indium. The resistance of the platinum…

A: The required expression for the melting point temperature of indium,

Q: A certain brand of hotdog cooker works by applying a potential difference of 129 V across opposite…

A:

Q: A common flashlight bulb is rated at 0.37 A and 2.2 V (the values of the current and voltage under…

A:

Q: 50 \( \Omega \) at 20 C, what is the measured temperature (in units of C) when its resistance is…

A: Initial temperature = T=20 °C Initial resistance = R = 50 ohm Final resistance = R'= 77.3 ohm…

Q: free electrons are there in a rectangular block of a conductor whose dimension is 8 m by 4 m by 3 m?…

A: We know that the formula of the drift velocity is given as  vd= IneAn=IevdA ------ eq 1  where I is…

Q: 25.21     A current-carrying gold wire has diameter 0.84 mm. The electric field in the wire is 0.49…

A: (a)Write the expression for the electric field in terms of current density and the expression of…

Q: Date: A wire 50 m long and 1 mm in radius is connected to a battery 9.11 V with a current of 36 A.…

A: Given data: Length of the wire l =50 m Radius r =1 mm Battery voltage V =9.11V Current I =36 A

Q: What current (in A) must be produced by a 12.0 V battery-operated bottle warmer in order to heat…

A:

Q: A heating element using nichrome connected to a 230 V supply draws an initial current of 3.2 A which…

A: Initial current,

Q: An 18-gauge copper wire with a diameter of 3-mm carries a constant current of 1.2-A. The charge…

A:

Q: A piece of a conductive square-shaped material with a side length of 3 cm and placed in an electric…

A: Here given a piece of square shaped material with side 3 cm.The electric field is 3 v/m. The current…

Q: How much electrical power is dissipated as heat when 7.00 A flow through a 62.0 m long piece of…

A: Given data The current flowing is given as I = 7 A. The length of the copper wire is given as L =…

Q: A toaster has a Nichrome (a4.5x10-4 °C-) heating element that has a resistance of Ro80 2 at a…

A: Temperature coefficient, α=4.5×10-4°C-1 Resistance, Ro=80Ω      at temperature To=20°C Resistance,…

Q: 4- The molecular weight of tungsten is 183.84 gr/mol, ts density is 19.25 gr/cm3, the resistivity of…

A:

Q: A proton beam in an accelerator carries a current of 140 µA. If the beam is incident on a target,…

A: Given : Current=I=140 μA Time=t=25 s

Q: A typical lightning bolt may last for 0.200 s and transfer 1.00 x1020 electrons. Calculate the…

A: Average current is given by

Q: In what appears to be a single lightning bolt, there are typically several distinct strokes over the…

A: The charge transferred to one point on the earth's surface during a typical discharge = 0.20 s The…

Q: A 560-W heating coil designed to operate from 110 V is made of Nichrome wire 0.640 mm in diameter.…

A:

Q: March 31, 2022 at 10:19 AM 1. An unknown alloy is subjected to an electric field of 25 V/m, and has…

A: Answer:-  Given  Electric field (E) = 25 V/m  Current density (J) = 1.45 × 109 A/m2  Resistivity (p)…

Q: A toaster using a Nichrome heating element operates on 120 V. When it is switched on at 20°C, the…

A:

Q: Integrated Concepts (a) What energy is dissipated by a lightning bolt having a 20,000-A current, a…

A:

Q: A wire 3.00 m long and 0.450 mm2 in cross-sectional area has a resistance of 38.8 2 at 20.0°C. If…

A:

Q: I need help solving these problems!!!

A: Hey, since there are multiple questions posted, we will answer first question. If you want any…

Q: What diameter must a copper wire be if it is to carry a maximum current of 37 A and produce no more…

A: the values provided in the  question are as follows:- we take maximum ammont of current and heat- so…

Q: What is the current carried by the wire? What is the potential difference between two points in the…

A: The cross sectional area of the wire is

Q: A certain brand of hotdog cooker works by applying a potential difference of 137 V across opposite…

A: To determine: The time taken to cook three hot dogs simultaneously in a cooker Given: Potential…

Q: An aluminum wire (ρ = 2.82x10-8Ωm at 20 °C and α = 3.9x10-3°C-1)with a diameter of 0.085 mm has a…

A:

Q: ter27-question30 The quantity of charge q (in Coulombs) that has passed through a surface of area…

A: Answer : b) Option 1

Q: proton beam in an accelerator carries a current of 105 µA. If the beam is incident on a target, how…

A:

Q: When an electric heater is turned on, the Nichrome heating element is at 0° C and draws a current of…

A: GivenTemperature T1=0°CCurrent (I1)=18 APotential difference (V)=120 VTemperature T2=795°Cα   for…

Q: A certain brand of hotdog cooker works by applying a potential difference of 136 V across opposite…

A:

Q: Kiting during a storm. The legend that Benjamin Franklin flew a kite as a storm approached is only a…

A: r1 = 2.16 mm r2 = 0.508 mm l = 0.801 km = 801 m ρ = 182 Ω.m V = 192 MV = 192 x 106 V I = ?

Q: 2. Suppose your phone's battery has a capacity of 2900 mAh and a potential difference of 3.8 V. What…

A: 2) The capacity of the battery is given in mAh which has the dimension of electric current…

Q: General Physics Module Phys 1011 AAU 4. Batteries are rated in terms of ampere - hours (A .h). For…

A:

Q: 25.12     A Copper wire has a square cross section 2.3 mm on a side. The wire is 4.0 m long and…

A: Given,

Q: Kiting during a storm. The legend that Benjamin Franklin flew a kite as a storm approached is only a…

A: Given:

Q: Residential building codes typically require the use of 12-gauge copper wire (diameter 0.205 cm) for…

A:

Resistivity

Resistivity is a characteristic property of the conductor’s material that measures the extent to which the material opposes the flow of current. It is denoted by the Greek letter “rho”. Electrical resistivity, also known as specific resistance, depends on the nature of the material of the conductor and is unaffected by its dimensions.