Answer :

Given the power of the two lamps, we will calculate the resistances R_{1} and R_{2} of two lamps separately.

Now, The two lamps of resistances 484 and 806.7 are connected in parallel.

So, the combined resistance of two lamps can be calculated as follows:

Total resistance, R= 302.5

Current drawn from the line can now be calculated by using Ohm's law as follows:

Thus, the current drawn from the line is 0.72 A

Rate this question :

How useful is this solution?

We strive to provide quality solutions. Please rate us to serve you better.

Try our Mini CourseMaster Important Topics in 7 DaysLearn from IITians, NITians, Doctors & Academic Expertsview all courses

Dedicated counsellor for each student

24X7 Doubt Resolution

Daily Report Card

Detailed Performance Evaluation