Physics, asked by silentkiller13, 10 months ago

Two bulbs of power 50w abd 60w work on 220v potential difference. If they are connected in parallel, how much current will flow in main conductor? ​

Answers

Answered by Anonymous
7
OK

POTENTIAL DIFFERENCE=220V

POWER

50W AND 60W

SO RESISTANCE

FOR 50W

RESISTANCE=(220×220)/50=968 ohms

FOR 60W

RESISTANCE=(220×220)/60

=806.67 ohms


AS THEY ARE IN PARALLEL
THE SAME CURRENT FLOWS THROUGH THEM

AND TOTAL RESISTANCE
=(1/968+1/806.67)^-1
=
(968+806.67/780856.56)^-1
=440 ohms
now
current=potential difference/resistance
=220/440
=0.5 ampere
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