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Current Affairs January 2024

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Which law states that the force between two charges is directly proportional to the product of the charges and inversely proportional to the square of the distance between them?

A. Coulomb's Law

B. Ohm's Law

C. Ampere's Law

D. Faraday's Law

Correct Answer :

A. Coulomb's Law


Related Questions

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Which law states that the total momentum of an isolated system remains constant if no external forces act on it?

A. Newton's First Law of Motion

B. Newton's Second Law of Motion

C. Newton's Third Law of Motion

D. Law of Conservation of Momentum

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4

What is the phenomenon where light waves oscillate in multiple planes?

A. Polarization

B. Diffraction

C. Dispersion

D. Interference

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What is the phenomenon where a wave combines with another wave to produce a wave with greater amplitude?

A. Reflection

B. Diffraction

C. Refraction

D. Constructive interference

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What is the unit of electric charge?

A. Coulomb

B. Volt

C. Ampere

D. Farad

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4

What is the SI unit of electrical conductance?

A. Siemens

B. Ohm

C. Farad

D. Volt

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4

Which law states that the force between two charges is directly proportional to the product of the charges and inversely proportional to the square of the distance between them?

A. Coulomb's Law

B. Ohm's Law

C. Ampere's Law

D. Faraday's Law

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4

Which of the following is an example of a vector quantity?

A. Mass

B. Speed

C. Distance

D. Velocity

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Which of the following is a non-contact force?

A. Friction

B. Tension

C. Gravity

D. Magnetic force

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4

What is the SI unit of half-life in radioactive decay?

A. Second

B. Year

C. Joule

D. Becquerel

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4

What is the SI unit of power?

A. Watt

B. Joule

C. Volt

D. Ampere

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4

What is the phenomenon where a wave interacts with an obstacle and bends around it?

A. Reflection

B. Diffraction

C. Refraction

D. Interference

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4

Which of the following statements about electric potential energy is true?

A. It is a scalar quantity.

B. It depends on the charge of the object and the distance from another charge.

C. It is always negative.

D. It is measured in amperes.

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4

What is the SI unit of electric field strength?

A. Volt per meter

B. Newton per coulomb

C. Coulomb per second

D. Ampere per meter

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What is the process by which a gas changes into a liquid?

A. Vaporization

B. Condensation

C. Sublimation

D. Fusion

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4

What is the acceleration due to gravity on the surface of the Earth?

A. 9.8 m/s²

B. 6.67 × 10^-11 Nm²/kg²

C. 3.00 × 10^8 m/s

D. 1.6 m/s²

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4

Which law states that the total electric charge in a closed system is constant?

A. Coulomb's Law

B. Ohm's Law

C. Conservation of Charge

D. Ampere's Law

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4

Which of the following is an example of a longitudinal wave?

A. Sound wave

B. Light wave

C. X-ray

D. Radio wave

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4

Which of the following is a fundamental force of nature responsible for holding atomic nuclei together?

A. Electromagnetic force

B. Gravitational force

C. Weak nuclear force

D. Strong nuclear force

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4

Which of the following is a measure of an object's resistance to changes in its state of motion?

A. Inertia

B. Momentum

C. Impulse

D. Damping coefficient

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Which of the following is a fundamental particle found in the nucleus of an atom?

A. Neutron

B. Electron

C. Proton

D. Photon

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What is the SI unit of magnetic flux in the CGS system?

A. Weber

B. Gauss

C. Tesla

D. Henry

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What is the SI unit of electric charge in the MKS system?

A. Coulomb

B. Statcoulomb

C. Ampere

D. Franklin

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What is the law that states the total electric charge in a closed system is constant?

A. Coulomb's Law

B. Ohm's Law

C. Conservation of Charge

D. Ampere's Law

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4

What is the SI unit of angular momentum?

A. Kilogram-meter per second

B. Joule-second

C. Newton-meter

D. Hertz

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4

Which law states that an object at rest tends to stay at rest and an object in motion tends to stay in motion unless acted upon by an external force?

A. Newton's First Law of Motion

B. Newton's Second Law of Motion

C. Newton's Third Law of Motion

D. Law of Gravitation

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4

What is the process by which a liquid changes into a gas below its boiling point?

A. Evaporation

B. Vaporization

C. Condensation

D. Sublimation

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4

Which type of lens is thicker in the center and thinner at the edges?

A. Convex lens

B. Concave lens

C. Plano-convex lens

D. Plano-concave lens

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What is the SI unit of capacitance in the CGS system?

A. Farad

B. Statfarad

C. Ampere-second

D. Volt

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What is the SI unit of energy?

A. Joule

B. Watt

C. Newton

D. Volt

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Which type of particle is negatively charged and orbits the nucleus of an atom?

A. Electron

B. Proton

C. Neutron

D. Positron