1.

Heat energy is being produced in a resistance in a circuit at the rate of 100 W. The current of 3 A is flowing in the circuit. What must be the value of the resistance ?

Answer»


Solution :`"GIVEN:Power (P) = 100 W, Current (I) = 3 A"`
`"To find:RESISTANCE (R)"`
`"Formulae:i.P VIii.V = IR"`
`"Calculation:From FORMULA (i),"`
`V=(P)/(I)=(100)/(3)=33.3V`
From formula (ii),
`R=(V)/(I)=(33.3)/(3)~~11Omega`


Discussion

No Comment Found

Related InterviewSolutions