Electric lamps with resistance 200 Ohm and 300 Ohm are connected in parallel. Calculate their total resistance
| December 8, 2020 | education
Rtotal-?
R1 = 200Ω
R2 = 300Ω
1 / R total = 1 / R1 + 1 / R2 (since parallel connection)
1 / R total = 1 / 200Ω + 1 / 300Ω = 5 / 600Ω = 1 / 120Ω
Rtotal = 120Ω
Answer: 120 Ohm
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