1 kWh = ?

Moment of inertia of a thin rod of mass 'M' and length 'L' about the axis perpendicular to the rod and passing through its centre is ________.

Who was famous for inventing the power battery, one of the first devices to provide a reliable source of electricity, in 1800? [CHSL 2021 Tier I]

Which of the following statements is/are NOT correct?
I. Force per unit volume is called pressure.
II. Liquids can exert pressure on walls of containers.
III. Force acting on an object can cause a change in it state of motion but not its shape. [CHSL Exam 2022 Tier I]

Who among the following physicists invented the voltaic pile, the forerunner of the modern battery, in 1800? [SICPO Paper I 2024]

An electric bulb of 100 W is used for 9 hours per day. What will be the 'units' of energy consumed in 1 day by the bulb?

A plane moves the distance of 1000 Km in 2 hr. Calculate its velocity.

Which of the following statements is NOT correct? [Combined Graduate Level Examination Tier I]

Which of the following is NOT a non-contact force? [CHSL Exam 2022 Tier I]

Who invented the electric bulb?
[Constable GD 2021]

Electrochemical cell is a device which converts chemical energy into electrical energy in a/an _____. [CHSL Exam 2024 Tier I]

Who found out the relationship between the current I flowing in a metallic wire and the potential difference across its terminals?  [CHSL 2021 Tier I]

Who among the following established a unit of horsepower that is equal to one horse doing 33,000 foot - pounds of work in one minute? [MTS Non Tech Havaldar CBIC and CBN Examination 2023]

What is the metric unit of pressure that is equal to 0.986923 atm? [SICPO Paper I 2023]

Who was famous for publishing a formula in 1827 that shows the mathematical relationship between current, resistance and voltage? [MTS Non Tech Havaldar CBIC and CBN Examination 2023]

__________ is commonly represented by the Greek letter ρ (rho). [SICPO Paper I 2024]

If the initial velocity of a car is 5 m/s, and the final velocity is 10 m/s in a 5-second journey, then the acceleration is _________.

If the velocity of a body becomes two times its initial velocity, its kinetic energy becomes n times its initial kinetic energy. What is the value of n?

Which of the following laws states that electric current 'I' flowing through a metallic wire is directly proportional to the potential difference 'V', across its ends provided its temperature remains constant?

Which of the following statements is correct?
I. Rolling friction is greater than the sliding friction.
II. The frictional force exerted by fluids is called drag. [MTS Non technical and Havaldar Examination 2021]

It is difficult to carry a heavy shopping bag with thin handles by hand, but slightly easier when the handles are covered with a thick piece of cloth. What is the reason behind that? [Junior Engineer 2024 Electrical Paper I]

Which of the following is the correct order of friction? [CHSL Exam 2022 Tier I]

The potential difference, V, across the ends of a given metallic wire in an electric circuit is directly proportional to the current flowing through it, provided its temperature remains the same. This is called ______ law. [CHSL Exam 2022 Tier I]

Which among the following is incorrect pair of physical quantity and unit of measurement? [Constable GD Examination 2022]

_______ states that temperature and other physical conditions remaining the same, the current through a conductor between two points is directly proportional to the voltage across the two points.
[Constable GD 2021]

What special name is given to the frictional force exerted by a fluid?
[Constable GD 2021]

identify the formula that represents Ohm's law.  [CHSL 2021 Tier I]

Which of the following devices is used to accelerate charged particles to high velocities? [CHSL Exam 2024 Tier I]

Who among the following invented the induction motor?
[Constable GD 2021]

What is the unit of measurement used for measuring the energy requirements of the human body?

[RRB NTPC CBT]

Electrochemical cell is a device which converts chemical energy into electrical energy in a/an _____.

[SSC CHSL 2024]

A light-year is a unit of____

[RRB NTPC CBT]

1. Which device was invented by Carl Friedrich Gauss and Wilhelm Eduard Weber in 1833?

[RRB NTPC CBT]

Who among the following physicists invented the voltaic pile, the forerunner of the modern battery, in 1800?

[SSC CPO 2024]

A ‘light year’ is a unit that is used to measure:

[RRB NTPC CBT]

Who among the following established a unit of horsepower that is equal to one horse doing 33,000 foot-pounds of work in one minute?

[RRB NTPC CBT]

At absolute zero (0 K or -273.15°C), the particles of matter:

[SSC GD 2024]

Who among the following established a unit of horsepower that is equal to one horse doing 33,000 foot-pounds of work in one minute ?

[SSC MTS 2023]

Who was the first to use the term 'horsepower' that refers to the power produced by an engine ?

[SSC CHSL 2024]

A lie detector apparatus is also known as a:

[RRB NTPC CBT]

Which of the following forces can only be applied when in contact with an object ?

[SSC CPO 2024]

Which is the Gaussian unit of kinematic viscosity?

[RRB NTPC CBT]

Which is the Gaussian unit of kinematic viscosity ?

[SSC MTS 2023]

The range of ______ force is of the order of10-16m.

[SSC CGL 2021]

‘(gnomon)’ is a part of the _______ .

[SSC CGL 2022]

The friction in liquids is called:

[RRB NTPC CBT]

Which physicist is known to establish the relationship between mechanical work and heat transfer ?

[SSC CPO 2024]

In 1834, who proposed a law that states that the current induced by a change in flow opposes the effect producing the change ?

[SSC CHSL 2023]

In 1851, who discovered the phenomenon of Eddy currents which flow in closed loops within conductors in planes perpendicular to the magnetic field?

[RRB NTPC CBT]

Who among the following noticed the deflection of the compass needle every time current was passed through the wire?

[RRB NTPC CBT]