Suppose the resistance of the coil in th...

Suppose the resistance of the coil in the previous problem is `25Omega`. Assume that the coil moves with uniform velocity during its removal and restoration. Find the thermal energy developed in the coil during (a) its removal, (b) its restoration and (c) its motion.

Text Solution

Verified by Experts

Here `R=25 W`
`(a) a=50V , T=0.25s`
`i=e/R=2A`
`H=I^2 RtT`
`=4xx25xx0.25=25J`
`(b) e=50v, T=0.25s`
`i=(e/R)=2A`
`H=i^2 RT=25 J`
`(c ) Since energy is a scalar quantity `
`:, Net thermal energy developed `
`=25J+25J=50J.`

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