Electricity — BPSC Previous Year Questions

4 questions from past BPSC papers, each with the correct answer and an explanation of why. Free to read — no signup.

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Paper6768707170ReTotal
Electricity1134413

Questions

63rd Pre · 2018
SI unit of resistance is:
  1. Volt
  2. Ampere
  3. Ohm
  4. Watt
67th Pre · 2022
Three resistors of 6Ω each connected in parallel give equivalent resistance of:
  1. 18Ω
  2. 6Ω
  3. 3Ω
  4. 2Ω
Why: 1/R = 1/6 + 1/6 + 1/6 = 3/6 ⇒ R = 2Ω.
65th Pre · 2019
Domestic appliances are connected in:
  1. Series
  2. Parallel
  3. Mixed
  4. Star
Why: Parallel — so each can be switched independently.
69th Pre · 2023
Fleming's left-hand rule gives the direction of:
  1. Induced EMF
  2. Force on current-carrying conductor
  3. Magnetic field due to current
  4. None

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