Question

Q.5 Calculate the force per unit length of a long straight wire carrying current
of 4 A due to parallel wires carrying 6 A current distance between the wires
is 3 cm.
(​

Answer 1

Answer:

ANSWER

The force per unit length between two current carrying conductors(wires) separated by distance 'r' is given by

L

F

=

2πr

M

0

I

1

I

2

=(4×10

−7

)(4)(6)(2×π+0.03)

=1.6×10

−4

n/m.

Answer 2

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$\huge\fcolorbox{black}{aqua}{Solution:-}$

✒ᴀɴsᴡᴇʀ:-

⛄ ғᴏʀᴄᴇ ᴘᴇʀ ᴜɴɪᴛ ʟᴇɴɢᴛʜ = 1.6 × 10^-4 ɴ/ᴍ

✒ ᴇxᴘʟᴀɴᴀᴛɪᴏɴ:-

⛄ ᴛʜᴇ ғᴏʀᴄᴇ ᴘᴇʀ ᴜɴɪᴛ ʟᴇɴɢᴛʜ ʙᴇᴛᴡᴇᴇɴ ᴛᴡᴏ ᴄᴜʀʀᴇɴᴛ ᴄᴀʀʀʏɪɴɢ ᴄᴏɴᴅᴜᴄᴛᴏʀs(ᴡɪʀᴇs) sᴇᴘᴀʀᴀᴛᴇᴅ ʙʏ ᴀ ᴅɪsᴛᴀɴᴄᴇ 'ʀ' ɪs ɢɪᴠᴇɴ ʙʏ ғ/ʟ = ᴍ0ɪ1ɪ2/2πʀ

= (4×10^-7)(4)(6)(2 × π + 0.03)

= 1.6 × 10^-4 ɴ/ᴍ

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