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Consider two (1 and 2) tungsten wires both of which have constant circular cross sectional areas...
Two copper wires have the same length but different cross sectional areas. The cross-sectional area of...
Two copper wires have the same length but different cross sectional areas. The cross-sectional area of wire 1 is A, and that of wire 2 is 2A. How are the resistances of the two wires related? Choose the correct answer from the following choices. Wire 1 has four times the resistance of Wire 2 Wire 1 has half the resistance of Wire 2 The are the same. Wire 1 has twice the resistance of Wire 2
Six copper wires have the lengths and cross-sectional areas listed below. The resistance R of each segment can be calc...
Six
copper wires have the lengths and cross-sectional areas listed
below. The resistance R of each segment can be calculated using, R
= pL/ A
Where p is the resistivity, L is the length of the wire, and A
is the wire's cross-sectional area. Rank the resistances of the
wires from lowest to highest.
Four copper wires of equal lengths are connected in series. Their cross sectional areas are 1.00cm²,...
Four copper wires of equal lengths are connected in series. Their cross sectional areas are 1.00cm², 2.00cm², 3.00cm² and 5.00cm². If the voltage of 120V is applied to the arrangement, what is the voltage across the 2.00cm² wire? NB: length of wires could be anything but the length is the same
23. Two wires A and B with circular cross sections are made of the same metal...
23. Two wires A and B with circular cross sections are made of the same metal and have equal lengths, but the resistance of wire A is three times greater than that of wire B. What is the ratio of the cross- sectional area of A to that of B? a. 3 b. 13 c. 1 d. 1/13 e. 1/3 24. A potential difference of 1.0 V is maintained across a 10.0-V resistor for a period of 20 s. What...
[VI] The figure shows three wires, made of the same material, with their cross-sectional areas and...
[VI] The figure shows three wires, made of the same material, with their cross-sectional areas and lengths. The resistance of each wire is as labeled in the figure. Which of the following statements is correct? L 1.5L L/2 AR A/2 R A/2 O Ri=R2 = R3 OR] >R2>R3 OR1 = R2>R3 OR2>R1 = R3
Two pieces of 14-gauge wire (diameter=0.163cm) each are 50m in length. One wire is made of...
Two pieces of 14-gauge wire (diameter=0.163cm) each are 50m in
length. One wire is made of aluminum, the other of tungsten; both
are maintained at a temperature of 20°C. The wires are joined
together at one end to form a sign wire of 100m length. A potential
difference of 12V is applied across the length of this compound
wire. (a) What is the resistance of each 50m segment? (b) What is
the current in each? (c) What is the potential...
The picture shows a battery connected to two wires in parallel. Both wires are made of...
The picture shows a battery connected to two wires in parallel.
Both wires are made of the same material and are of the same
length, but the diameter of wire A is twice the diameter of wire
B.
True or False for the following:
1) The resistance of wire B is four times as large as the
resistance of wire A.
2) The power dissipated in wire A is 16 times the power
dissipated in wire B.
3) The voltage...
Two square wires are composed differently, see the figure of their cross-sections. Wire 1 is a...
Two square wires are composed differently, see the figure of their cross-sections. Wire 1 is a square wire of material A but with a circular center of material C. The diameter of the circular inside is equal to the length of side of the square. The second square wire has the same cross-sectional area as the first but is entirely comprised of material A. Both wires are the same length and setup to have the same temperature difference maintained between...
1. A wire of length L and cross-sectional area A has a resistance of 5 Ω. What...
1. A wire of length L and cross-sectional area A has a resistance of 5 Ω. What is the resistance if the same amount of material is used to make a wire triple as long? 2. What is the resistance of 15 m length of household no. 14 copper circular wire having a diameter of 1.6 mm? (Hint: the resistivity of copper – textbook, page 782)
A copper wire of cross-sectional area of 8.2x10^-7 m^2 has a resistance of 1.11 Ω. a)....
A copper wire of cross-sectional area of 8.2x10^-7 m^2 has a resistance of 1.11 Ω. a). How long is the wire? b). If a potential of 12.0 V is applied across the ends of the wire, what current will flow through the wire? c). How much electrical power is supplied to the spool? d). How many electrons (N) pass through this wire in 1.00 minutes?
Six
copper wires have the lengths and cross-sectional areas listed
below. The resistance R of each segment can be calculated using, R
= pL/ A
Where p is the resistivity, L is the length of the wire, and A
is the wire's cross-sectional area. Rank the resistances of the
wires from lowest to highest.
23. Two wires A and B with circular cross sections are made of the same metal and have equal lengths, but the resistance of wire A is three times greater than that of wire B. What is the ratio of the cross- sectional area of A to that of B? a. 3 b. 13 c. 1 d. 1/13 e. 1/3 24. A potential difference of 1.0 V is maintained across a 10.0-V resistor for a period of 20 s. What...
[VI] The figure shows three wires, made of the same material, with their cross-sectional areas and lengths. The resistance of each wire is as labeled in the figure. Which of the following statements is correct? L 1.5L L/2 AR A/2 R A/2 O Ri=R2 = R3 OR] >R2>R3 OR1 = R2>R3 OR2>R1 = R3
Two pieces of 14-gauge wire (diameter=0.163cm) each are 50m in
length. One wire is made of aluminum, the other of tungsten; both
are maintained at a temperature of 20°C. The wires are joined
together at one end to form a sign wire of 100m length. A potential
difference of 12V is applied across the length of this compound
wire. (a) What is the resistance of each 50m segment? (b) What is
the current in each? (c) What is the potential...
The picture shows a battery connected to two wires in parallel.
Both wires are made of the same material and are of the same
length, but the diameter of wire A is twice the diameter of wire
B.
True or False for the following:
1) The resistance of wire B is four times as large as the
resistance of wire A.
2) The power dissipated in wire A is 16 times the power
dissipated in wire B.
3) The voltage...
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