Home
Current Affairs January 2024

What is the correct answer?

4

What is the phenomenon where a charged object induces a charge separation in a neutral object when brought close to it?

A. Conduction

B. Induction

C. Charging by friction

D. Polarization

Correct Answer :

B. Induction


Related Questions

What is the correct answer?

4

Which law states that the pressure of a gas is directly proportional to its absolute temperature at constant volume?

A. Boyle's Law

B. Charles's Law

C. Gay-Lussac's Law

D. Avogadro's Law

What is the correct answer?

4

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

A. Inertia

B. Momentum

C. Impulse

D. Damping coefficient

What is the correct answer?

4

What is the formula for calculating electric power in a circuit?

A. P = VI

B. P = V²/R

C. P = I²R

D. P = V/R

What is the correct answer?

4

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

A. Neutron

B. Electron

C. Proton

D. Photon

What is the correct answer?

4

What is the phenomenon where light changes direction when passing from one medium to another?

A. Reflection

B. Diffraction

C. Refraction

D. Polarization

What is the correct answer?

4

Which type of electromagnetic wave has the highest frequency?

A. Gamma rays

B. Radio waves

C. X-rays

D. Microwaves

What is the correct answer?

4

What is the SI unit of magnetic susceptibility?

A. No unit (dimensionless)

B. Tesla per meter

C. Ampere per meter

D. Weber

What is the correct answer?

4

Which of the following statements about transformers is true?

A. They only work with direct current (DC).

B. They can increase or decrease voltage in an electrical circuit.

C. They do not involve the principle of electromagnetic induction.

D. They are used to store electrical energy.

What is the correct answer?

4

Which law states that the electromotive force (emf) in a closed circuit is equal to the rate of change of magnetic flux through the circuit?

A. Faraday's Law of Electromagnetic Induction

B. Lenz's Law

C. Ohm's Law

D. Ampere's Law

What is the correct answer?

4

What is the SI unit of inductance?

A. Henry

B. Farad

C. Ohm

D. Volt

What is the correct answer?

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

What is the correct answer?

4

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

What is the correct answer?

4

Which of the following statements about electric fields is true?

A. Electric fields always point towards positive charges.

B. Electric fields are vectors and have both magnitude and direction.

C. Electric fields only exist inside conductors.

D. Electric fields do not interact with magnetic fields.

What is the correct answer?

4

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

A. Coulomb's Law

B. Ohm's Law

C. Gauss's Law

D. Ampere's Law

What is the correct answer?

4

Which of the following statements about nuclear fusion is true?

A. It releases energy when light nuclei combine to form heavier nuclei.

B. It is the process that powers stars.

C. It is a type of radioactive decay.

D. It involves the emission of beta particles.

What is the correct answer?

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

What is the correct answer?

4

What is the SI unit of electric current?

A. Ampere

B. Volt

C. Ohm

D. Joule

What is the correct answer?

4

What is the phenomenon where a wave bounces back after striking a surface?

A. Refraction

B. Diffraction

C. Interference

D. Reflection

What is the correct answer?

4

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

A. Statcoulomb

B. Coulomb

C. Ampere-hour

D. Franklin

What is the correct answer?

4

Which of the following is a non-contact force?

A. Friction

B. Tension

C. Gravity

D. Magnetic force

What is the correct answer?

4

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

A. Mass

B. Speed

C. Distance

D. Velocity

What is the correct answer?

4

What is the SI unit of magnetic pole strength?

A. Ampere-meter

B. Weber

C. Tesla

D. Ampere

What is the correct answer?

4

Which law states that the pressure of a gas is directly proportional to its absolute temperature at constant volume?

A. Boyle's Law

B. Charles's Law

C. Gay-Lussac's Law

D. Avogadro's Law

What is the correct answer?

4

What is the process by which a material becomes magnetized when placed in a magnetic field?

A. Induction

B. Magnetization

C. Polarization

D. Ferromagnetism

What is the correct answer?

4

What is the SI unit of electric potential?

A. Volt

B. Ampere

C. Ohm

D. Watt

What is the correct answer?

4

What is the unit of angular velocity?

A. Rad/s

B. m/s

C. Hz

D. Nm

What is the correct answer?

4

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

What is the correct answer?

4

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

A. Neutron

B. Electron

C. Proton

D. Photon

What is the correct answer?

4

Which of the following is a measure of the amount of matter in an object?

A. Mass

B. Weight

C. Volume

D. Density

What is the correct answer?

4

What is the SI unit of magnetic field strength?

A. Tesla

B. Weber

C. Gauss

D. Ampere