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Physics MCQs

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Easy fpsc Uploaded: 17 Aug 2026

When resistors are connected in parallel, the total resistance:

  • A Increases
  • B Becomes infinite
  • C Remains the same as any one resistor
  • D Decreases below the smallest individual resistance
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Correct Answer: Option D — Decreases below the smallest individual resistance
Explanation: When resistors are connected in parallel, the reciprocal of the total resistance equals the sum of the reciprocals of each individual resistance, always resulting in a total less than the smallest resistor.
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442
Medium css fpsc ppsc Uploaded: 13 Jul 2026

What is the principle of conservation of momentum?

  • A Momentum increases with velocity only
  • B Total momentum of an isolated system remains constant
  • C Momentum equals mass times acceleration
  • D Momentum decreases with time
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Correct Answer: Option B — Total momentum of an isolated system remains constant
Explanation: The principle of conservation of momentum states that the total momentum of an isolated system remains constant provided no external forces act on it.
Submitted by: PaperMCQs
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