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Preeti Dabral 2 months, 1 week ago

Electricity is the set of physical phenomena associated with the presence and motion of matter that has a property of electric charge. Electricity is related to magnetism, both being part of the phenomenon of electromagnetism, as described by Maxwell's equations.

Sudhakar P 1 year, 2 months ago

Uniform

Rajnish Kumar Singh 1 year, 6 months ago

Magnetic field inside the solenoid is uniform at every point.

Rajdeep Sinh 2 years, 3 months ago

Hii

Yogita Ingle 2 years, 4 months ago

A progressive wave is defined as the onward transmission of the vibratory motion of a body in an elastic medium from one particle to the successive particle.

When two progressive waves of same amplitude and wavelength travelling along a straight line in opposite directions superimpose on each other, stationary waves are formed.

Yaswanth S M 2 years, 4 months ago

Principle Axis: The straight line passing through the pole P and the centre of curvature C of the mirror, is called principal axis of the mirror.   Normal: The normal at any point of the spherical mirror is the straight line obtained by joining that point with the centre of the mirror

Yogita Ingle 2 years, 6 months ago

Principle Axis: The straight line passing through the pole P and the centre of curvature C of the mirror, is called principal axis of the mirror.

Normal: The normal at any point of the spherical mirror is the straight line obtained by joining that point with the centre of the mirror.

Yaswanth S M 2 years, 4 months ago

Electric potential at a point in an Electric field (for instance, let's take it as uniform) is the amount of work done in moving a unit positive charge from infinity to that point against electric forces. (attraction or repulsion) whereas Electric potential difference between two points in an Electric field is defined as the amount of work done in moving unit positive charge from one point to another point against the electric force. In other words, Potential difference is simply the difference of scalar potentials between two points or anything you consider.

Swati Priya Mishra 2 years, 7 months ago

ok

Yogita Ingle 2 years, 7 months ago

Electric potential at a point in an Electric field (for instance, let's take it as uniform) is the amount of work done in moving a unit positive charge from infinity to that point against electric forces. (attraction or repulsion)

whereas Electric potential difference between two points in an Electric field is defined as the amount of work done in moving unit positive charge from one point to another point against the electric force.

In other words, Potential difference is simply the difference of scalar potentials between two points or anything you consider.

Ashish Raj 2 years, 7 months ago

Cilliary muscles

Yogita Ingle 2 years, 7 months ago

The human eye can focus objects at different distances by adjusting the focal length of eye lens due to the power of accomodation of human eye.

Yogita Ingle 2 years, 7 months ago

The human eye can focus objects at different distances by adjusting the focal length of eye lens due to the power of accomodation of human eye.

Abu Hamza 1 year, 11 months ago

The acceleration of gravity is 9.8m/s2 (square) and 10m/s2 (square)

Chandan Mondal 2 years, 7 months ago

9.8m/s2

Dev Mewada 2 months, 3 weeks ago

F=m×a 1=9.8×a 10÷9.8=a

Yaswanth S M 2 years, 4 months ago

??

Abhradip Chakraborty 2 years, 10 months ago

The moon keeps the same face pointing towards the Earth because its rate of spin is tidally locked so that it is synchronized with its rate of revolution (the time needed to complete one orbit). In other words, the moon rotates exactly once every time it circles the Earth.

Ankit Kr 2 years, 10 months ago

F=m *a As angle is increased, acceleration of objects increased.And hence force will be increased. ?

Abu Hamza 1 year, 11 months ago

Tesla

Sandeep Kumar 3 years, 1 month ago

Tesla

Yogita Ingle 3 years, 1 month ago

SI unit of magnetic field is tesla (T). So, one tesla is that magnetic field in which a charge of one coulomb moving with a velocity of 1 m/s perpendicular to the magnetic field experiences a force of one newton.

Abhijeet Raj 2 years, 11 months ago

Scaler

Parasharam Chougule 3 years, 1 month ago

It is a scalar quantity.

Sandeep Kumar 3 years, 1 month ago

Ac genertaor works on the principle of Electro magnetic induction.

Deepika P 3 years, 1 month ago

Electromagnetic induction

Aiesha Sharma 2 years, 2 months ago

The work done to bring a charge from one fixed point to another fixed point is known as potential difference.

Sandeep Kumar 3 years, 1 month ago

Work done to bring a unit positive test charge from one point to another point is known as potential difference. It's S.I unit is volt and it is denoted by a capital letter V. It is also known as voltage.

Gaurav Seth 3 years, 3 months ago

Potential difference :

Potential difference is also defined as work done to move a unit charge from one point to another.

V = W / Q

Or

Potential difference =Work done / Charge

Vivek Kumar 3 years, 1 month ago

Light is a form of energy . It is double nature wave and particle

Dhaval Sangani 3 years, 4 months ago

Light is electromagnetic wave which causes sensation in the eyes.

Meghana Muralidharan 3 years, 5 months ago

A form of energy

Vivek Kumar 3 years, 1 month ago

v/i

Dhaval Sangani 3 years, 4 months ago

2f

Abhishek Singh 2 years, 8 months ago

2

Dhaval Sangani 3 years, 4 months ago

The angle of incidence at which angle of refraction becomes 90 degree and hence then after light ray will get reflected back in same medium.

Yogita Ingle 3 years, 8 months ago

The critical angle is the angle of incidence beyond which rays of light passing through a denser medium to the surface of a less dense medium are no longer refracted but totally reflected.

Atul Sharma 3 years, 8 months ago

45j

Yogita Ingle 3 years, 8 months ago

Potential difference (V)= 15 V
Charge (Q)= 3C
We know that
The potential difference(p.d) between two point in an electric circuit is defined as the amount of work done in moving a unit charge from one point to the other point.
Potential difference (V) = work done (W)/Charge (Q)
V= W/Q
Putting the values in the above formula we get:
15 V = W / 3 C
W= 15 V × 3 C
W= 45 J
Hence, the work done in moving the charge is 45 J.

Dhaval Sangani 3 years, 4 months ago

Red as it does not get scattered

Dhaval Sangani 3 years, 4 months ago

does not get scattered.

Arbind Kumar 3 years, 5 months ago

Red

Archana Shukla 3 years, 5 months ago

Yellow

Yogita Ingle 3 years, 8 months ago

 Concave Lens Convex Lens The image formed is upright, virtual, and smaller size than the object. The position of the image formed is in between the lens and the object regardless of object’s position The image formed is inverted, real, and smaller than the object when the object is placed at Focus. The image formed is inverted, real, and same size as the object when the object is placed at 2F. The image formed is inverted, real, and larger than the object when the object is placed between 2F and F. No image is formed when the object is placed at Focus (F). The image formed is upright, Virtual, and larger than the object when the object is placed on the same side of the lens.

Atul Sharma 3 years, 8 months ago

The force exerted by a body which make other bodies revolve around it
How to noon

Yogita Ingle 3 years, 8 months ago

Centripetal force definition is given as “The component of force acting on an object in curvilinear motion which is directed toward the axis of rotation or center of curvature.” Centripetal force unit is Newton. The centripetal force direction is always perpendicular to the direction that the object is being displaced.

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