a hot plate of an electric oven connected to a 220v line has two resistance coils A and B each of 24ohm resistance which may be used separately, in series or in parallel. wht r the currents in 3 cases? could u answer it now?
Answers
Answered by
0
V=IR
I=V/R
In Ist case of parallel connection
1/R=1/24+1/24
:2/24
1/12
R=12ohm
I=220/12
18amp(approx)
now in case IInd of series connection
R=24+24=48
I=220/48
4.5amp(approx)
I=V/R
In Ist case of parallel connection
1/R=1/24+1/24
:2/24
1/12
R=12ohm
I=220/12
18amp(approx)
now in case IInd of series connection
R=24+24=48
I=220/48
4.5amp(approx)
Answered by
0
Explanation:
hope it helps you
follow me plz...
Attachments:
Similar questions