A long uniform solid cylinder of radius r and resistivity p carries current I along its length which is uniformly distributed

Question

A long uniform solid cylinder of radius r and resistivity p carries current I along its length which is uniformly distributed throughout its cross sectional area Two long hollow cylinder B and C of radi 8 r and 64 r surrounds the solid cylinder The surface of all cylinder A B and C are perfectly black At equilibrium the temperature of B is 400 K or 10 8 Take P S I unit o Stefan s constant 8 r A B Then at equilibrium 64 r C

Kunduz · Accepted Answer

Click to see the answer