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The inductance per unit length of a do...

The inductance per unit length of a double tape line as shown in the figure

A

`(mu_(0) h)/(b)`

B

`(b)/(mu_(0) h)`

C

`(mu_(0)b)/(h)`

D

`(h b)/(mu_(0))`

Text Solution

Verified by Experts

The correct Answer is:
A
Neglecting end effects of magnetics field, we have
`B=(mu_(0)l)/(b)`
Flux `phi` per unit length of the plates is
`(mu_(0)l)/(b)xxhxxl=(mu_(0)hl)/(b)`
Also, `phi =LirArrL=(mu_(0)h)/(b)`
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