1.

An electric press consumes 120 kj of energy in 5 minutes when the current flowing through it is 5a. calculate the electric potential

Answer»

Power=work/time

so, 12×10⁴= work/300 (P=120000 J, t=5min=60×5s)

work=36×10⁶

and POTENTIAL (V)=work/q and q=It, q=1500

V=36×10⁶/1500

V=24×10³ VOLT ANS.




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