Ainput power of a 208v, 3hp, 4 pole 60 hz delta connected induction motor is 2500w at a 0.86 pf when it is running at 1740 rpm. the stator resistance is 2 ohms and th 2. e constant power loss: p aw+pmisc+ pcore) is 600w. find: (a) the stator copper losses (b) stator output/pag (c) rotor copper losses (d) pconv (e) pout (f) output torque

Consider a large isothermal enclosure that is maintained at a uniform temperature of 2000 k. calculate the emissive power of the radiation that emerges from a small aperture on the enclosure surface. what is the wavelength ? , below which 10% of the emission is concentrated? what is the wavelength ? 2 above which 10% of the emission is concentrated? determine the wavelength at which maximum spectral emissive power occurs. what is the irradiation incident on a small object placed inside the enclosure?

Ahot wire operates at a temperature of 200°c while the air temperature is 20°c. the hot wire element is a tungsten wire of 5 um diameter and 2 mm in length. plot using excel current, heat transfer and heat generated by the wire for air velocity varying from 1-10 m/s in steps of lm/s? matlab the sensor voltage output, resistance, or assume nu 0.989 re033pr13 take air properties at tr (200°c20°c)/2 = 110°c properties of tungsten: c 0.13 kj/kg. k 3 p 19250 kg/m k (thermal conductivity) = 174 w/m. k

Inspection for bearing condition will include: (clo4) a)-color b)-smell c)-size d)-none of the above