The energy used by the electric iron for 3 minutes is 100 kJ at a voltage of 220 volts. How large the current is in the iron? O 0.003 A O 0.15 A O 2.53 A O 151.51 A

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: A 14-gauge copper wire has a cross-section area of 2.081 mm². The resistivity of copper at 20…

A: The initial (20oC) resistance is, R1=ρLA=1.7×10-8 Ωm100 m2.081 mm210-6 m21 mm2=0.817 Ω

Q: 6. An 18-gauge wire with a diameter of 1.0 mm and length 1.4m carries a constant current of 6.1 A.…

A: Given, Diameter = 1.0 mm Length = 1.4 m Current = 6.1 A Resistivity of copper wire = 1.72×10-8ohm.m…

Q: An 18 gauge copper wire (diameter 1.02 mm) carries a current with a current density of 2.90×10^6…

A: The equation for the current in the wire is given by

Q: A wire 50.0 m long and 2.00 mm in diameter is connected to a source with a potential difference of…

A:

Q: A copper wire of 20 m long has a potential difference of 68 V between its ends. What is the current…

A:

Q: Some airliners use wires of aluminum (resistivity 2.75 x10 -8 Ω- m) rather than copper to reduce…

A:

Q: A conductor has a cross- sectional area of 2.3x106 m2 and the number of free electrons per unit…

A:

Q: A rod of 2.0-m length and a square (2.0 mm × 2.0 mm) cross section is made of a material with a…

A: Given data:  Length (L) = 2.0 m Cross section area (A) = 2.0 mm × 2.0 mm Resistivity (ρ) = 6.0×10-8…

Q: The starter motor of a car engine draws a current of 190 A from the battery. The copper wire to the…

A:

Q: A wire 50.0 m long and 2.00 mm in diameter is connected to a source with a potential difference of…

A:

Q: The resistivity of gold is 2.44 × 10-8 N · m at room temperature. A gold wire that is 0.9 mm in…

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

Q: 1.67 A flows in 18 gauge copper wire (ordinary household wire). The diameter of 18 gauge wire is…

A: We know that the formula  of the current is given as  I = neAVd where I is the current  e is the…

Q: Some airliners use wires of aluminum(resistivity 2.75×10−8 Ω ⋅m2.75×10−8 Ω ⋅m) rather than copper to…

A: a) The required electric field is, b) The required resistance is,

Q: The potential difference between the ends of a wire that is 3.50 m long and has a radius of 0.650…

A: Given Potential difference is V=4.60 V Current is I=17.8 A Length of the wire is l=3.50 m Radius is…

Q: A block of gold of volume 232 mm is used to make a wire 78.9 m long. What is the resistance (in 0)…

A:

Q: The filament of an incandescent light bulb is made of tungsten which has a thermal coefficient of…

A: We have I =VR=VR01+α∆T

Q: A heart defibrillator is used to enable the heart to start beating if it has stopped. This is done…

A: Current (I) = 12 A Voltage (V) = 25 V time (t) = 3 millisecond

Q: An aluminum wire has a length of 1.50 m and a cross sectional area of 0.460 mm2. If the resistivity…

A: Given Data   The length of the aluminium wire is l = 1.50 m The cross sectional area of the wire is…

Q: Current passes through a solution of sodium chloride. In 1.00 s, 2.68 * 1016 Na+ ions arrive at the…

A: a) The expression for find amount of charge is Q=qNa+Cl- Insert values in the above equation…

Q: A wire is 1.4 m long and 1.2 mm2 in cross-sectional area. It carries a current of 3.9 A when a 2.9 V…

A:

Q: A tungsten wire is used to determine the melting point of lead. A battery of 6.00 V is attached to…

A:

Q: A copper wire has a cross-sectional area of 3.31× 10-6m². It carries a constant current of 10.0 A.…

A: Given value--- Area = 3.31 × 10-6 m2 . Current = 10 Amp. density of copper = 8.92 g/cm3 . molar…

Q: A current of 4A passes through a wire. The number of electrons crossing a point in the wire in 5…

A: Given,I=4 At=5 mins= 300 sec

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

A:

Q: A straight, cylindrical wire lying along the x axis has a length of 0.72 m and a diameter of 0.78…

A: Given  The resistivity of the wire is  Ꝭ = 4.74×10-8 Ω.m. The length of the wire is l = 072 m. The…

Q: The mean time between collisions in iron is 3.6×10−15 s. What electron current is driven through a…

A: Let t be the mean time of collision in iron, d be the diameter of the wire, E be the electric field,…

Q: A copper wire has a square cross section 2.3 mm on a side. The wire is 4 m long and carries a…

A:

Q: 2.1 A piece of wire l cm long carries a current I when a voltage V is applied across its ends at a…

A: The standard expression for the resistance of wire (R) is given as, R=ρLA Here, ρ is the resistivity…

Q: A tungsten wire has a radius of 0.097 mm and is heated from 20.0 to 1383 oC. The temperature…

A: radius of tungsten wire , r = 0.097 mm = 0.097 x 10-3 m   Initial temperature , T1 = 20 °C Final…

Q: 4) A copper wire has a diameter of 1.60mm and carrier a current of 2.5A. Given the density of free…

A: diameter, d = 1.60 mm current, I = 2.5 A number of electrons density, n = 8.5 x 1028  Resistivity, ρ…

Q: drift speed

A:

Q: current of I = 1.1 A is passing through a conductor with cross sectional area A = 3.5 × 10-4 m2. The…

A:

Q: 2.1 A piece of wire l cm long carries a current I when a voltage V is applied across its ends at a…

A: Given data: Length of wire at 0∘C is, l1=L cm. Magnitude of current at 0∘C is, I. Voltage applied…

Q: A germanium wire is having a resistance of 26.40 and a radius of 26mm. The resistivity (p) of silver…

A:

Q: Q3. An automobile battery has a potential difference of 12.0 V and sends current through a circuit…

A: Given: The potential difference is 12 V. The resistance is 1.5 ohm. The length of the wire is 1.0 m.…

Q: Calculate the drift velocity of electrons in a copper wire with a diameter of 2.053 mm (12-gauge)…

A:

Q: A current of I = 3.6 A is passing through a conductor with cross sectional area A = 6.5 × 10-4 m2.…

A: Drift velocity is given by,                   vd = IneAHere,           I is the current flown…

Q: A 4.5×10−4 V/m electric field creates a 2.0×1017 electrons/s current in a 1.6-mm-diameter aluminum…

A: Given that      The electric field is(E) =  4.5*10-4V/m                                    I =…

Q: what is the drift speed of the electrons?Assume that each copper atom contributes one freeelectron…

A: Given :  Crossection area, A = 3.31 x 10-6 m2 Current, i = 10 A  density of copper, d = 8.95 g/cm3…

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

A:

Q: A strip of doped silicon 260.0 um wide contains 8.80 × 1022 conduction electrons per cubic meter and…

A:

Q: There is a potential difference of 1.3 V between the ends of a 20 cm long graphite rod that has a…

A:

Q: A current of 4A passes through a wire. The number of electrons crossing a point in the wire in 5…

A: According to Bartleby Q &A  guidelines , i am giving answer of first question  Thankyou.

Q: The 12-gauge copper wire in a typical residential building has a cross-sectional area of 3.31 x 10-6…

A: Given: Cross sectional area of copper wire (A) = 3.31×10-6 m2. Current in wire (I) = 10.0 A. Density…

Q: Pencil "lead" is actually mostly graphite (Carbon). You need a 4 Ohm resistor but only have 0.7 mm…

A:

Q: An aluminum wire has a length of 1.50 m and a cross sectional area of 0.480 mm2. If the resistivity…

A:

Q: A silver wire has a length of 1.50 m and a cross sectional area of 0.360 mm2. If the resistivity of…

A:

Microscopic view of current

In physics, the term current is expressed as the rate of flow of electric charges across the area per unit time (I=q/t). It propagates along in the direction of the motion of positive charges. When the current is caused by the motion of electrons, the direction of the current is opposite to the flow.