Solved Electricity and Magnetism (Physics Basics)

Electricity and Magnetism MCQs for Competitive Exams

Practice with answers, explanations, and exam-focused revision notes.

27 MCQs Page 2

Topic Notes: Electricity and Magnetism

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Electricity and Magnetism MCQs in General Science-Everyday Science are useful for candidates who need targeted practice for CSS, PMS, FPSC, PPSC, NTS, entry tests, and other competitive exams in Pakistan. This topic page is designed for quick revision, repeated practice, and exam-focused preparation.

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Gravity is to 'pull' as Magnetism is to which of the following?

Push

Repulsion

Separation

Attraction

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Why is copper wire preferred over iron wire for the transmission of electrical power?

Copper can take higher power than iron

Copper is lighter than iron

Copper is cheaper than iron

Copper is a better conductor than iron

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Which of the following is not considered an advantage of Alternating Current (AC) over Direct Current (DC)?

Lines loss in AC transmission lines are negligible

In AC the magnitude of current can be reduced by a choke

The AC shows skin effect

In AC a wide range of voltages is possible

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Why does a freely suspended magnet consistently align itself in a north-south direction?

Earth is a huge magnet

Gravitational field

Due to attraction of north pole and repulsion of Western pole

A lot of metals deposits on north and south poles

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What is the approximate electrical resistance of a light bulb rated at 60 watts and 220 volts?

4.0 Ω

40 Ω

400 Ω

800 Ω

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Which statement accurately describes the behavior of capacitors connected in a series circuit?

The total voltage is the sum of the voltage across each capacitor

The total capacitance is the sum of the individual capacitance

The available charge is shared between two or more capacitors

The total charge is the sum of the charges on each capacitor

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How will a freely suspended magnetic needle behave if placed exactly at the geographic North Pole?

The needle will remain vertical with its N-pole downward

The needle will remain vertical with its S-pole downward

The needle will remain almost vertical with its N-pole downward

The needle will remain almost vertical with its S-pole downward

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What is the primary advantage of transmitting alternating current (AC) over direct current (DC)?

It is free from voltage fluctuations

Its generation costs much less

It can be transmitted over long distances with minimum power loss

It contains more electrical energy

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What type of materials are utilized in the manufacturing of permanent magnets?

Paramagnetic substances

Ferromagnetic substances

Diamagnetic substances

Changing magnetic field induces an electromotive force in a conductor

Report

How does the needle of a magnetic compass behave in the presence of a magnetic field?

Rotates in the magnetic field of an electric current

Is affected only by permanent magnetics

Aligns itself perpendicular to a magnetic field

Aligns itself parallel to a magnetic field

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Electricity and Magnetism MCQs for Competitive Exams

Electricity and Magnetism MCQs for Competitive Exams

Topic Notes: Electricity and Magnetism

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