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ECAT (Engineering College Admission) Physics: Most Repeated MCQs with Answers

Practise ECAT (Engineering College Admission) Physics most repeated MCQs in sets of about 20 questions with instant answers and explanations. This page focuses on high-yield questions that appear most often in the real paper, helping you build accuracy and speed for the actual ECAT (Engineering College Admission) paper.

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Sample ECAT (Engineering College Admission) Physics most repeated questions

  1. Q1. The current in an AC circuit is given by I = 10 sin(100t). The frequency is

    • A) 50 / π Hz
    • B) 100 / (2π) Hz
    • C) 50 Hz
    • D) 100 Hz

    Answer: 50 / π Hz

  2. Q2. A series LCR circuit has R = 10 ohm, L = 0.1 H, and C = 100 μF. If the frequency of the AC source is 50 Hz, what is the impedance?

    • A) 17.9 ohm
    • B) 14.1 ohm
    • C) 20 ohm
    • D) 10 ohm

    Answer: 10 ohm

  3. Q3. How many significant figures in 100.0?

    • A) 1
    • B) 2
    • C) 3
    • D) 4

    Answer: 4

  4. Q4. What are the dimensions of force?

    • A) MLT⁻²
    • B) ML²T⁻²
    • C) MLT⁻¹
    • D) ML²T⁻¹

    Answer: MLT⁻²

  5. Q5. The power factor of an AC circuit is 0.5. The phase difference between voltage and current is

    • A) π / 6
    • B) π / 3
    • C) π / 4
    • D) π / 2

    Answer: π / 3

Frequently asked questions

What are most repeated Physics MCQs for ECAT (Engineering College Admission)?

Most Repeated Physics MCQs are high-yield questions that appear most often in the real paper. On Imtehan they are grouped into short sets so you can review one topic at a time before moving to timed mocks.

How many ECAT (Engineering College Admission) Physics most repeated questions can I practise?

Imtehan organises ECAT (Engineering College Admission) Physics questions into multiple sets. Start with the sample questions below, then open a set to practise interactively with scoring and explanations.

Is ECAT (Engineering College Admission) Physics most repeated practice free?

Yes — you can practise ECAT (Engineering College Admission) Physics MCQs for free on Imtehan. Premium unlocks detailed analytics and unlimited mock attempts.

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