Electricfield, Magnetic Field and Photon
We know that photon has no charge. Then where from it gets electric and magnetic field in light? Malik Sajad asks Answer: Electric and magnetic fields are not produced by the photon; it is massless too. But, photon is created by time varying electric a...
Categories: Ask Physics, Electricfield, Project, sajad, varying magnetic field Tags: answer, Auto, charge, Draft, Electricfield, field, form, Learnt, magnetic field, magnetic fields, Physics, sajad, time
What is twin paradox?
TWIN PARADOX is a paradoxical situation coming in while explaining the theory of relativity. “Time dilation” is one of the important consequences of relativity. It says that if a body is moving with relativistic speeds, time will dialate ...
Categories: Ask Physics, caption, escape velocity, Project, relativistic travel, Relativity, time dilation, TWIN, twin paradox Tags: Auto, body, dialate, Draft, duration, paradox, paradoxical situation, person, Physics, relativistic speeds, speed, theory, theory of relativity, time dilation, twin paradox
Why direct currents aren’t used in Home circuits?
How can an alternating current change its direction while moving in a wire or any conductor? Why direct currents aren’t used in Home circuits? RAHUL ASKED Answer: Alternating current is produced by rotating a coil in a strong magnetic field (or ...
Categories: alternating currents, Ask Physics, direct currents, energy loss, Project Tags: answer, aren, Auto, Circuits, conductor, direct currents, direction, Draft, home, magnet, magnetic field, Physics, wire
A body is dropped from a tower of height 96 m. Another body is thrown up from the ground after a second with a velocity of 40 m/s.When and where they will meet?
A body is dropped from a tower of height 96 m. Another body is thrown up from the ground after a second with a velocity of 40 m/s. When and where they will meet? SOUNDARYA asked Answer: For the first body, u=0 m/s Let S=x (from top) x=0.5 gt2 &#...
Categories: Ask Physics, first body, Project, SOUNDARYA, t2, tower Tags: Auto, body, Draft, first body, height, Physics, s2, second, SOUNDARYA, tower, velocity
Eddy currents and applications
What ere Eddy currents and what is their application? Rahul asked Answer: Eddy currents (also called Foucault currents) are currents induced in conductors, when the magnetic flux linked with a solid conductor changes. The change in magnetic flux can ...
Categories: Ask Physics, displacement sensors, eddy current brakes, eddy current separator, eddy current testing, induction meters, Project Tags: answer, application, Auto, body, conductor, conductors, Draft, eddy current, eddy currents, flow of electrons, flux, magnetic flux, Physics
Chemical effects of current
How much Ag can be deposited as uniform layer on a metallic vessel using 0.2 Ampere current passed through silver salt solution for 3 hours.(1 mol of Ag=108g) SAN THOMAS ASKED Incoming search terms:chemical effects of current questionsearth pict...
Categories: Ask Physics, Project, salt solution, san thomas, silver salt, THOMAS, uniform layer, vessel Tags: ampere, ASKED, Auto, Draft, layer, Physics, salt solution, san thomas, silver, silver salt, uniform, uniform layer, vessel
