کولمب کا قانون ______ کہتا ہے؟

1. Force between two point charges is directly proportional to the sum of the charges and inversely proportional to the square of the distance between them
2. Force between two point charges is directly proportional to the product of the charges and the square of the distance between them
3. Force between two point charges is inversely proportional to the product of the charges and directly proportional to the square of the distance between them
4. Force between two point charges is directly proportional to the product of the charges and inversely proportional to the square of the distance between them

Explanation

Coulomb's Law states that the magnitude of the electrostatic force (F) between two point charges (q1 and q2) is directly proportional to the product of the charges and inversely proportional to the square of the distance (r) between them.

Mathematically, this is expressed as: F ∝ (q1 × q2) / r².

This law describes the relationship between electric charges and the force they exert on each other.

Related MCQs

Which planet is known as Morning or Evening Star?

کون سا سیارہ صبح یا شام کا ستارہ کہلاتا ہے؟

1. Mercury
2. Venus
3. Jupiter
4. None of these

اس سوال کو وضاحت کے ساتھ پڑھیں

Explanation

Venus is called Morning or Evening Star.

Venus is the brightest planet in the Solar System.

It is Eight planets in the solar system

It is the hottest planet in the solar system

The black planet is called Venus

The second closest planet to the sun is Venus

This planet has no moon

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The maximum mass of an atom is concentrated in _____?

ایک ایٹم کا زیادہ سے زیادہ وزن _____ میں مرتکز ہے؟

1. Electron
2. Proton
3. Neutron
4. Nucleus

اس سوال کو وضاحت کے ساتھ پڑھیں

Explanation

The nucleus contains protons and neutrons, which are much heavier than electrons.

Hence, almost all the mass of an atom is concentrated in its nucleus.

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Two masses attract each other; the force is called ______?

دو ماسس ایک دوسرے کو راغب کرتے ہیں۔ فورس کو ______ کہا جاتا ہے؟

1. Push
2. Friction
3. Gravitational force
4. None of these

اس سوال کو وضاحت کے ساتھ پڑھیں

Explanation

Gravitational force is the natural force of attraction between any two masses in the universe.

This force is always attractive.

It acts along the line joining the centers of the two masses.

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A voltmeter is always connected in a circuit in ____?

ایک وولٹ میٹر ہمیشہ ____ میں ایک سرکٹ میں منسلک ہوتا ہے؟

1. Series
2. Parallel
3. Both A and B
4. None of these

اس سوال کو وضاحت کے ساتھ پڑھیں

Explanation

A voltmeter measures potential difference (voltage) between two points in a circuit.

To do this correctly, it must be connected in parallel with the component across which the voltage is to be measured.

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Electric current is measured by ____?

برقی رو کی پیمائش ____ سے ہوتی ہے؟

1. Ammeter
2. Voltmeter
3. Ohmmeter
4. Multimeter

اس سوال کو وضاحت کے ساتھ پڑھیں

Explanation

An ammeter is a device specifically designed to measure electric current (in amperes).

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