- #1
miniradman
- 196
- 0
Hi there, I really need help with one question and help/hints would be greatly appreciated
1. A wire 3meters long, mass 0.10kg and carrying a current of 70.0 Amps floats without support above a horizontal wire 2.0cm below and parrallel to it. Find the current in the lower wire
2. I'm guessing this could be relevant formulas area? this formula
F/L = µo/2(pi) * I1 I2/d
where:
L= 3.00m
I1(subscript 1) = 70.00A
I2(subscript 2) = ?
d= 2cm or 0.02m
3. This is the exact working out that I have attempted
1/3 = (4(pi)*10^-7)/2(pi) * (70.0 I2/0.02)
= (8.79*10^-5)I2/0.125
*I am confused about the weight
1. A wire 3meters long, mass 0.10kg and carrying a current of 70.0 Amps floats without support above a horizontal wire 2.0cm below and parrallel to it. Find the current in the lower wire
2. I'm guessing this could be relevant formulas area? this formula
F/L = µo/2(pi) * I1 I2/d
where:
L= 3.00m
I1(subscript 1) = 70.00A
I2(subscript 2) = ?
d= 2cm or 0.02m
3. This is the exact working out that I have attempted
1/3 = (4(pi)*10^-7)/2(pi) * (70.0 I2/0.02)
= (8.79*10^-5)I2/0.125
*I am confused about the weight