Two electric bulb of 220V,100w and 220V,25W are connected in series across a 220V supply line.potential difference across these two bulbs (respectively )is
Answers
Answered by
0
Resistance of bulb 1=220/100
=2.2 ohm
Resistance of bulb 2=220/25
=8.8 ohm
Total resistance =2.2+8.8
=11 ohm
Total curent=V/R
=220/11
=20 amp
V across bulb 1=I*R
=20*2.2
=44 V
V across bulb 2=20*8.8
=176 V
=2.2 ohm
Resistance of bulb 2=220/25
=8.8 ohm
Total resistance =2.2+8.8
=11 ohm
Total curent=V/R
=220/11
=20 amp
V across bulb 1=I*R
=20*2.2
=44 V
V across bulb 2=20*8.8
=176 V
Similar questions