Questions
Voltmeters V1 and V2 are connected in series across a D.C. line. V1 reads 80 volts and has a per volt resistance of 200 ohms. V2 has a total resistance of 32 kilo-ohms. The line voltage is
detailed solution
Correct option is D
R1 =80 × 200 =16000 Ω =16 kΩCurrent flowing through V1 = Current flowing throughV2 =8016 × 103 =5 × 10−3 ASo, potential difference across V2 isV2 =5 × 10−3×32 × 10−3 = 160 voltHence, line voltage , V = V1 + V2 = 80 + 160 = 240 VTalk to our academic expert!
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