piece of copper wire has a resistance of 1.5Ω. Solve for the resistance of the manganin wire of one-fourth length and one-fifth diameter if the resistivity of manganin is 20 times that of copper

Q: Let's say you have a 20 cm long silicon wire, with a diameter of 4 cm. What current flows through…

A: Write the given values with suitable variables. L=20 cm=0.2 mr=4 cm2=0.02 mV=1000 Vρ=2300 Ω.m Here,…

Q: A wire has a length of 8.0 m and is made of copper which has a resistivity of 1.7 x 10-8 Ωm.  This…

A: The diameter d=0.01m  Length L=8.0m  To find the resistance of the wire

Q: 15. A 2.50-m cylindrical rod of diameter 0.500 cm is connected to a power supply that maintains a…

A: Solution:  Voltage across the rod, V = 18.0 V  Length of the rod, L = 2.50 m = 250 cm  Diameter, d…

Q: A tungsten wire has a resistance of 2 N at 20 °C, and a gold wire has a resistance of 4.2 N at the…

A:

Q: 1) A resistor has a value of 20 ohms (Ω) when it is at 15 degrees Celsius. If the coefficient of…

A: For question (1),Given,The resistance at  is The coefficient of thermal resistivity is The final…

Q: A copper wire of radius a = 0.161 mm has an aluminum jacket of outer radius b = 0.224 mm. There is a…

A: Data Given ,  Inner Radius of the wire ( a ) = 0.161 mm = 0.161 × 10-3 m Outer Radius of wire ( b )…

Q: A certain lightbulb has a tungsten filament with a resistance of 22.4 N when at 20.0°C and 143 N…

A:

Q: A common flashlight bulb is rated at 0.24 A and 2.2 V (the values of the current and voltage under…

A:

Q: Nichrome alloy has a resistivity of 110 × 10−6 Ωcm. From a roll of nichrome wire of 2.5 mmdiameter,…

A: Given, Resistivity ρ=110×10-6 ohm cm diameter=2.5 mm radius r=1.25 mm L=1 Area of the roll of…

Q: pper wire has a resistance of 0.525 N at 20.0°C, and an iron wire has a resistance of 0.560 N at the…

A:

Q: What is the resistance of a wire with a length of 43.4 m and a radius of 2.8 mm, made from a metal…

A: Given data: The length is L=43.4 m The radius is r=2.8 mm The resistivity is ρ=6.0×10-8 Ω.m The area…

Q: A copper wire of radius a=0.306 mm has an aluminum jacket of outer radius b-0.402 mm. There is a…

A:

Q: A copper wire with 4mm diameter, 2.0m length carries 6.0 ampere of current. Free electron density of…

A: Given, current passing through wire is, I = 6A length of wire, L = 2m free electron density, n = 8.5…

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: 15. A 2.50-m cylindrical rod of diameter 0.500 cm is connected to a power supply that maintains a…

A:

Q: Nichrome alloy has a resistivity of 110 x 10-6 Ncm. From a roll of nichrome wire of 2.5 mm diameter,…

A: Given values: Resistivity, ρ=110×10-6 Ωcm Radius, r=2.5 mm2=1.25 mm Length, l=1 m

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

A:

Q: 2. A copper wire of cross-sectional area 1.20 mm2 has a current of 6.90 A flowing along its length.…

A:

Q: 1. Gold wire (resistivity p=2.44 x 10* 2m) with a diameter of 2.0 mm is being unwound and a certain…

A: The resistance of a wire is given by, R=ρLA................(1) Where, R= resistance of the wire…

Q: A copper wire is found to be having a resistance of 106.95 m at normal temperature. If the…

A: Resistance of a material is defined by its length, area, and resistivity. Resistivity is an…

Q: What is the change in a copper wire's resistivity when its temperature increases to 45°C from room…

A: Initial resistivity, ρo = 1.78×10-8 ΩmCoefficient of expansion, α = 3.9×10-3 (1/°C)Temperature…

Ohm's law

Ohm’s law is a prominent concept in physics and electronics. It gives the relation between the current and the voltage. It is used to analyze and construct electrical circuits. Ohm's law states that the voltage across a conductor is directly proportional to the current flowing through it.

Path of Least Resistance

In a series of alternate pathways, the direction of least resistance is the actual or metaphorical route that offers the least resistance to forwarding motion by a given individual or body.