Question

Part A Determine the ratio of the resistances of two wires that are identical except that...

Part A

Determine the ratio of the resistances of two wires that are identical except that wire A is twice as long as wire B.

RARB =

Part B

Determine the ratio of the resistances of two wires that are identical except that wire A has twice the radius of wire B.

RARB =

Part C

Determine the ratio of the resistances of two wires that are identical except that wire A is made of copper and wire B is made of aluminum. The resistivity of aluminum is 2.8 ×10−8Ω⋅m, the resistivity of copper is 1.7 ×10−8Ω⋅m.

RARB =

Homework Answers

Know the answer?
Your Answer:

Post as a guest

Your Name:

What's your source?

Earn Coins

Coins can be redeemed for fabulous gifts.

Not the answer you're looking for?
Ask your own homework help question
Similar Questions
1) Two wires are identical, except that one is aluminum and one is silver. The aluminum...
1) Two wires are identical, except that one is aluminum and one is silver. The aluminum wire has a resistance of 0.17 Ω. What is the resistance of the silver wire? 2) A coil of wire has a resistance of 38.0 Ω at 25° C and 43.7 Ω at 51° C. What is the temperature coefficient of resistivity?
Calculate the ratio of the resistance of 15.0 m of aluminum wire 2.3 mm in diameter,...
Calculate the ratio of the resistance of 15.0 m of aluminum wire 2.3 mm in diameter, to 26.0 m of copper wire 1.9 mm in diameter. The resistivity of copper is 1.68×10−8Ω⋅m and the resistivity of aluminum is 2.65×10−8Ω⋅m. Express your answer using two significant figures.
A 14.0-m length of wire consists of 9.0 m of copper followed by 5.0 m of...
A 14.0-m length of wire consists of 9.0 m of copper followed by 5.0 m of aluminum, both of diameter 1.3 mm . A voltage difference of 95 mVis placed across the composite wire. The resistivity of copper is 1.68×10−8Ω⋅m and the resistivity of aluminum is 2.65×10−8Ω⋅m. 1. What is the total resistance (sum) of the two wires? Express your answer to two significant figures and include the appropriate units. 2. What is the current through the wire? Express your...
In the circuit shown in the diagram below, two thick wires connect a 1.7 volt battery...
In the circuit shown in the diagram below, two thick wires connect a 1.7 volt battery to a Nichrome (NiCr) wire. Each thick connecting wire is 15 cm long, and has a radius of 9 mm. The thick wires are made of copper, which has 8.36e+28 mobile electrons per cubic meter, and an electron mobility of 0.00434 (m/s)/(V/m). The Nichrome wire is 6 cm long, and has a radius of 5 mm. Nichrome has 9e+28 mobile electrons per cubic meter,...
SHOW ALL STEP PLZZ Wires A and B are identical, except that the length of wire...
SHOW ALL STEP PLZZ Wires A and B are identical, except that the length of wire A is one-half that of wire B. If the same potential difference is applied between the two ends of each wire, how does the electric field within wire A compare to that in wire B? why is the answer The electric field in wire A is twice that in wire B.
A 100-m-long copper wire of radius 0.19 mm is connected across a 1.5-V battery. Assume the...
A 100-m-long copper wire of radius 0.19 mm is connected across a 1.5-V battery. Assume the resistivity of copper is 1.7 × 10−8 Omega⋅m. Determine the resistance of the wire. determine the current through the resistor. Determine the power delivered by the battery.
The lengths of two metal wires P and Q are in the ratio 1:2 and the...
The lengths of two metal wires P and Q are in the ratio 1:2 and the ratio of the resistivities of P and Q is 3:2. Assume that each wire has circular cross-section. The ratio of the diameter of the cross-sections of P and Q is 2:1. The ratio of the resistances of P and Q is:
Determine the magnitude and direction of the force between two parallel wires 15 m long and...
Determine the magnitude and direction of the force between two parallel wires 15 m long and 4.0 cm apart, each carrying 15 A in the same direction. (SELECT ONE OF THE FOLLOWING): The force on each wire will be repulsive. The force on each wire will be attractive. The wires will not interact. Part B: Determine the magnitude of the force between two parallel wires.
A 62.5 m length of insulated copper wire is wound to form a solenoid of radius...
A 62.5 m length of insulated copper wire is wound to form a solenoid of radius 1.7 cm. The copper wire has a radius of 0.49 mm. (Assume the resistivity of copper is ? = 1.7 ? 10?8 ? · m.) (a) What is the resistance of the wire? ? (b) Treating each turn of the solenoid as a circle, how many turns can be made with the wire? turns (c) How long is the resulting solenoid? m (d) What...
1. A 10.0 m length of wire consists of 5.0 m of copper, followed by 5.0...
1. A 10.0 m length of wire consists of 5.0 m of copper, followed by 5.0 m of aluminum. Both have a diameter of 1.4 mm. A potential difference of 95 mV is placed across the composite wire. *Note* the resistivity of copper is 1.68 x 10 -8  Ohm * m and the resistivity of aluminum is 2.65 x 10 -8  Ohm * m A. (worth 10 points) What is the equivalent Resistance of the composite wire? B. (worth 5 points) What...