Q. 123.9( 25 Votes )
Two lamps, one ra
Given the power of the two lamps, we will calculate the resistances R1 and R2 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
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