1.Three resistors 20 Ω, 30 Ω and 50Ω are connected in series across a 125 V battery. Calculate the following:
- total resistance
R=20+30+50=100 (Ω)R=20+30+50=100\ (\Omega)R=20+30+50=100 (Ω)
- current in the circuit
I=V/R=125/100=1.25 (A)I=V/R=125/100=1.25\ (A)I=V/R=125/100=1.25 (A)
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