Find the resistance of a L = 1.1 cm long resistor with cross-sectional area of A = 4.86×10-5 m2. The resistor is made of a material with resistivity of ρ = 0.356 Ω·m. Your answer should be in ohms (Ω).

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…

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Q: The resistivity of copper is 1.70 x 10-8 2. m. HINT Apply the expression relating resistance to…

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Q: Use a graph to find the resistance Ro at 0 °C and the temperature coefficient a, where the…

A: The equation of resistance is given by, R=R01+αT

Q: The length of a 200 m lead wire has a resistance of 1.7 Ω. If the cross section of this wire is 3.0…

A: Resistance is a measure of the opposition to current flow in an electrical circuit. Resistance is…

Q: From Kirchoff's law, the current I in an RC (resistor-capacitor) circuit during discharging obeys…

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Q: When a R= 90.9 a resistor is connected across a 12 V battery, a current of 123 mA flows. What is the…

A: Given data:  Resistance (R) = 90.9 Ω Battery emf (ε) = 12 V Current (I) = 123 mA = 0.123 A

Q: Three resistors, R1 = 17.3, R2 = 13.2, R3 = 78.0, are connected in series across a 16.6 V battery.…

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Q: At the left end. the resistivity is 2.25*10-8 Ω.m and the right side is 4.50*10-8m. (a) What is the…

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Q: A cylindrical conductor has resistance of R0 = 140 Ω. It has length L, radius of the cross section…

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Q: What is the maximum power deliverable b a stack of 100 10YSZ cells to an optimum resistive load?…

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Q: Find the equivalent resistance, the current supplied by the battery and the current through each…

A: Given: Voltage of battery, V = 7 V Resistance, R1 = 1 Ω Resistance, R2 = 6 Ω Resistance, R3 = 2 Ω

Q: Consider the network of four resistors shown in the diagram, where R1= 2.00 Ω , R2= 5.00 Ω , R3=…

A: (A)   From the figure (1), the resistors of the resistance R1 and R2 are connected in parallel…

Q: A cylindrical conductor has resistance of R0 = 120 Ω. It has length L, radius of the cross section…

A: Given that,resistance, R=120 Ωlength of resistor=Lradius=rresistivity=ρ

Q: Of what material is a resistor made if its resistance is 40.0% greater at 100°C than at 20.0°C?

A: Given, Resistance is 40.0% greater at 100°C than at 20.0°C Let T1=20 c T2=100c Resistance at 20c=Ro…

Q: As part of a class project you are given 0.900 g of copper and asked to fabricate a wire with…

A: total mass of copper= 0.9 g

Q: lông L tungster re if it has a diam 0.137 × 10-3 m and a resistance of 3.41 k2? The resistivity of…

A: GivenDiameter of wire (d)=0.137×10-3 mResistance(R)=3.41×103 ohm  Resistivity of Tungsten…

Q: A battery of 12 V and internal resistance (1) is connected to a load resistor R= 20. The potential…

A: Given that,Voltage : V = 12 (V)Resistance : R = 2 (Ohm)Potential difference : V = 10 (V)Here we need…

Q: A conductor having a resistance of 50 ohms has temperature coefficient of resistivity of 4.143x10^-3…

A: According to question we need to find --- What is its resistance when the temperature drops to 20…

Q: A steel wire of length LL and radius r1r1 has a resistance RR. A second steel wire has the same…

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Q: An electric motor winding uses 1800 m of copper conductor with a cross-sectional area of 0.26 cm2.…

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Q: As part of a class project you are given 0.900 g of copper and asked to fabricate a wire with…

A: Mass of copper (m) = 0.9 g Density of copper (D) = 8920 kgm3Resistivity of copper (ρ) = 1.72×10-8…

Q: Two identical resistors of R0 = 71 Ω are connected head-to-tail. (a)  Express the resistance R0 of…

A: a)The relation between resistance, resistivitylength & cross sectional area isRo=ρLA

Q: Consider a circuit where a 2.35-ohm resistor is connected in parallel with a second unknown…

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Q: 10-gauge copper wire (diameter = 2.588 mm, ρ = 1.7 × 10–8 Ω · m) has a total resistance of 0.32 Ω.…

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Q: When a R = 92 Q resistor is connected across a 12.4 V battery, a current of 122.3 mA flows. What is…

A: Calculate the total resistance of the circuit by adding internal resistance (r) and resistance (R).…

Q: Consider the circuit below. The battery has an open-circuit voltage of ɛ = 30 V and an internal…

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Q: What is the percentage difference of the total resistance of the three resistors R1 = 250 Q2, R2 =…

A: This problem can be solved using the formula for equivalent resistance in series.

Q: ) How much work do you do if you carry a 100 N backpack up a flight of stairs with a height of 5 m?…

A: FORCE=100n DISPLACEMENT=5M work done by you=(force)(displacement)=100 X 5m=500J (ANSWER)

Q: A copper wire has a length of 38.0 m and a resistance of 4.10 Q at 20.0°C. Assuming a circular…

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Q: Three resistor are connected in series where R1= 63.2 Ohms, R2= 105 Ohms, and R3 = 42.8 Ohms. What…

A: A circuit is said to be connected in series when the same amount of current flows through the…

Q: Given a parallel circuit with three resistors and a total voltage of 15, R1 = 10 Q, R2 = 20 Q, and…

A: According to question we need to find voltage across R2 .

Q: A thin copper wire with a diameter 2.5 mm is connected to a 1.2-V potential difference, a current of…

A: The voltage and current is given. So using ohm's law we can calculate the resistance by, V=IR R is…

Q: A coil of fine copper wire has a resistance of 6.4-Ω and a total mass is 15.1 g. What is the…

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Q: Cell membranes contain channels that allow K+ ions to leak out. Consider a channel that has a…

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Q: A student set up the circuit shown for her electronics class. Assuming  E = 7.50 V and R = 6.00 Ω,…

A: Given Data:   The value of emf is, ε=7.50 V The resistance is, R=6.00 Ω   Part (a):     By using…

Q: The given diagram depicts a gold wire and a silver wire that are soldered together and have the same…

A: Given Data: Diameter of both gold and silver wire (d) = 2.00 mm.Hence, radius (r) = d2 = 1.00 mm =…

Q: What is the resistance (in units of 0) of a wire made of a material with a resistivity of 3.2 x 10-8…

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Q: A cylindrical conductor with resistivity ρ, length L, and radius r , has resistance R0=302Ω. If the…

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Q: A copper wire has a resistance of 15 Ω at some temperature. An aluminum wire has 3 times the length…

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Q: What is the resistance of ▼ Part A A 1.3-m-long gold wire that is 0.30 mm in diameter? Express your…

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Q: A 1 m long electrically conductive wire made of material X has electrical conductivity of…

A: Solution:   As per the given data,   We know that,   Electrical resistivity is given as:   ρ=RAl…

Q: A wire of given material having length l and area of cross-section A has a resistance of 4 Ω. What…

A: The expression of resistance is,

Q: At 20 degrees C, a gold wire of length 95 m with a diameter of 1.6 mm is connected across a 15 V dc…

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Q: Consider the circuit shown in the figure below. (Assume R₁ = 14.0 and R₂ = 7.50 2.) b 25.0 V + R₁…

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Q: A gold wire has a length of 23.0 m and a resistance of 4.70 Ω at 20.0°C. Assuming a circular…

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Q: A 19.5-g sample of nichrome with density 8.400 ✕ 103 kg/m3 is made into a wire 1.45 ✕ 103 m long. If…

A: The relation of the resistance is R=ρLALet,L=1.45×103 mρ=1.00×10-6  Ω·md=8.400 ×103 kg/m3

Temperature Variance of Resistance

Electrical resistance or simply resistance is the property of a material that opposes the free flow of electrons through it. The total amount of resistance to the flow of charges (or current) is affected by many factors like the length of the conducting material, its cross-sectional area, resistivity, and temperature.