[VI] The figure shows three wires, made of the same material, with their cross-sectional areas and...
The figure 4 below shows three conductors made from the same material and have different cross-sectional areas and lengths. Rank the three conductors according to their resistance, greatest first. (b) (c)
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 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.
Consider two (1 and 2) tungsten wires both of which have constant circular cross sectional areas ; we are given the following data: Wire 1: length = L Wire 2: length = L/4 ; diameter = d ; diameter = 2d ; ; resistance = R, resistance = R2 A potential difference (V) applied across wire 1 results in a power dissipation of (P.) and a potential difference (V.) applied across wire 2 results in a power dissi- pation of...
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
The figure shows two connected wires that are made of the same material. The current entering the wire on the left is 2.0 A and in that wire the electron drift speed is vd. What is the electron drift speed in the wire on the right side?
Three cylindrical wires are made of the same material. Their lengths and radii are wire 1: length 2ℓ, radius r/2 wire 2: length 3ℓ, radius 3r wire 3: length ℓ, radius r/4 (a) Rank the wires according to their resistances, greatest first Select one: a. 1>2>3 b. 1 =2>3 c. 3>1>2 d. 1>3>2 e. 3>2>1(b) Rank the wires according to the current density across their cross sections, greatest first Select one: a. 3>1>2 b. 1>3>2 c. 1=2>3 d. 3>2>1 e. 1>2>3
Three cylindrical wires are made of the same material. Their lengths and radii are wire 1: length 2ℓ, radius r/2 wire 2: length 3ℓ, radius 3r wire 3: length ℓ, radius r/4 (a) Rank the wires according to their resistances, greatest first Select one: a. 1>2>3 b. 3>2>1 c. 1>3>2 d. 3 >1>2 e. 1=2>3(b) Rank the wires according to the current density across their cross sections, greatest first Select one a. 3>1>2 b. 1>2>3 c. 1 =2>3 d. 3>2>1 e. 1>3>2
Three cylindrical wires are made of the same material. Their lengths and radii are wire 1: length 24, radius r/2 wire 2: length 34, radius 3r wire 3: length , radius r/4 (b) Rank the wires according to the current density across their cross sections, greatest first Select one O a. 1>3>2 O b. 1 =2> 3 c.3>1 > 2 O d. 3 > 2>1 O e. 1>23
Not yet answered Three cylindrical wires are made of the same material. Their lengths and radii are wire 1: length 21, radius r/2 wire 2: length 31, radius 3r wire 3: length , radius r/4 (b) Rank the wires according to the current density across their cross sections, greatest first Select one: O a. 3 > 2>1 O b. 1523 O c. 1>3>2 O d. 3 >1 > 2 e. 1>2> 3