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A ball thrown vertically from a moving vehicle
The ball falls back to the vehicle. The ball travels at the same velocity ( including direction) as the vehicle due to inertia.
The ball falls back to the vehicle.
See lessThe ball travels at the same velocity ( including direction) as the vehicle due to inertia.
Vehicle Moving on High Speed along dusty road
As air moves, it carries dust with it. Along the sides, air flow is streamlined; pressure is thus lower than inside so dust does not enter. At the rear, turbulence sets in causing eddies. This disturbance allows air to enter inside the vehicle, with dust.
As air moves, it carries dust with it.
Along the sides, air flow is streamlined; pressure is thus lower than inside so dust does not enter.
At the rear, turbulence sets in causing eddies. This disturbance allows air to enter inside the vehicle, with dust.
See lessFree Fall
A freely falling body accelerates, so the resultant force is in a downward direction, thereby feeling weightless.
A freely falling body accelerates, so the resultant force is in a downward direction, thereby feeling weightless.
See lessCONTROL GRID
When the negativity of the grid is increased, fewer electrons cross it; the intensity of the beam decreases, reducing the brightness of the spot on the screen. When the grid is made less negative, more electrons cross, increasing the intensity of the electron beam. This increases the brightness of tRead more
When the negativity of the grid is increased, fewer electrons cross it; the intensity of the beam decreases, reducing the brightness of the spot on the screen.
See lessWhen the grid is made less negative, more electrons cross, increasing the intensity of the electron beam. This increases the brightness of the spot on the screen.
Application of capacitor
The capacitor gets charged thereby preventing sparking at the contact. Instead of sparking, the discharge at the contact is used to charge the capacitor.
The capacitor gets charged thereby preventing sparking at the contact. Instead of sparking, the discharge at the contact is used to charge the capacitor.
See less