As material is same, resistivity will be same
so,
R = pL / A
for wire 1
R = p * 2L /
r2 / 4
R = 8pL /
r2
for wire 2
R = p * 3L /
* 9r2
R = pL / 3r2
for wire 3
R = 16pL /
r2
so,
ranking is
3 > 1 > 2
Question 11 Not yet answered Points out of 5.00 Flag question Three cylindrical wires are made...
Question 12 Not yet answered Points out of 5.00 Flag question 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 f, radius r/4 (b) Rank the wires according to the current density across their cross sections, greatest first Select one: a. 1>2>3 . b. 3>2>1 • c. 3 >1>2 . d. 1=2>3 . e. 1>3>2
Question 11 Not yet answered Points out of 5.00 P Flag question Three cylindrical wires are made of the same material. Their lengths and radii are wire 1: length 24, radius r/2 wire 2: length 31, radius 3r wire 3. length f, radius r/4 (a) Rank the wires according to their resistances, greatest first Select one: O a. 1>2>3 b.1=2>3 O c. 3>2 > 1 O d. 1>3>2 O e. 3 >1 > 2
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Question 12 Not yet answered Points out of 5.00 P Flag question Three cylindrical wires are made of the same material. Their lengths and radii are wire 1: length 24, radius r/2 wire 2: length 31, radius 3r wire 3: length l, radius r/4 (b) Rank the wires according to the current density across their cross sections, greatest first. Select one O a. 3 >1 > 2 O b. 1>2>3 O c. 1>3> 2 O d. 3>2 > 1 e....
Question 12 Not yet answered Points out of 5.00 P Flag question Three cylindrical wires are made of the same material. Their lengths and radii are wire 1: length f, radius 2r wire 2: length 21, radius r/2 wire 3: length 4l, radius r/3 (b) A potential difference V is applied across the length of the wires. Rank them according to the current density across their cross sections, greatest first. Select one: O a. 1>3>2 O b. 3>2>1 O c....
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
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 = 2 > 3 d. 1>3> 2 e. 3 >1>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 3l, radius 3r wire 3: length l, radius r/4 (a) Rank the wires according to their resistances, greatest first Select one: a. 3>2>1 O b. 1>3>2 c. 1>2>3 d. 3 >1 > 2 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. 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