Radiation and dual nature Electromagnetic waves Current electricity
... 1.What do you mean by quantisation of electric charge ? 2.No two electric lines of force can intersect each other , why ? 3.Define dielectric constant in terms of force between two charges. 4.Draw electric lines of force to represent a uniform electric field. 5.To which orientation an electric dipol ...
... 1.What do you mean by quantisation of electric charge ? 2.No two electric lines of force can intersect each other , why ? 3.Define dielectric constant in terms of force between two charges. 4.Draw electric lines of force to represent a uniform electric field. 5.To which orientation an electric dipol ...
33.43. Model: Assume that the field is uniform in space over the loop
... The moving slide wire in a magnetic field develops a motional emf and a corresponding current in the wire and the rails. The current through the resistor will cause energy dissipation and subsequent warming. Solve: (a) The induced emf depends on the changing flux, not on where the resistance in the ...
... The moving slide wire in a magnetic field develops a motional emf and a corresponding current in the wire and the rails. The current through the resistor will cause energy dissipation and subsequent warming. Solve: (a) The induced emf depends on the changing flux, not on where the resistance in the ...
Unit 08 Induction and Lenz`s Law
... Last week we saw that moving electric charges (currents) could produce a magnetic field, which we could “see” with a compass. The direction of this magnetic field was given by the right-hand-rule that we discussed. In that experiment we looked at the magnetic field produced by a straight wire, but w ...
... Last week we saw that moving electric charges (currents) could produce a magnetic field, which we could “see” with a compass. The direction of this magnetic field was given by the right-hand-rule that we discussed. In that experiment we looked at the magnetic field produced by a straight wire, but w ...
Jeopardy - Pleasant Valley School District
... A device that changes motion into electrical energy ...
... A device that changes motion into electrical energy ...
MH lect 26
... Suppose Lenz’s law were reversed, then I would be reversed and F would go right and the bar would be accelerated to the right, w/o need of external positive work and heat would be dissipated at the same time. The is violates cons. of Energy, so Lenz’s law is correct. ...
... Suppose Lenz’s law were reversed, then I would be reversed and F would go right and the bar would be accelerated to the right, w/o need of external positive work and heat would be dissipated at the same time. The is violates cons. of Energy, so Lenz’s law is correct. ...
Short Questions and Answers
... designed value. This prevents heat damage or fire. If a fuse is replaced by another fuse which is higher than the design limit for current, then when the current exceeds the design value current but still lower than the fuse-ratings, fire may result due to overheating of cables. Q8 : Explain why a c ...
... designed value. This prevents heat damage or fire. If a fuse is replaced by another fuse which is higher than the design limit for current, then when the current exceeds the design value current but still lower than the fuse-ratings, fire may result due to overheating of cables. Q8 : Explain why a c ...
The earth is a giant magnet
... with the fingers in the direction of the current The thumb points to the north pole ...
... with the fingers in the direction of the current The thumb points to the north pole ...
Homework Set #3 - Solutions
... Partial credit may be given even if the final answer is incorrect so please show all work! Question 1 (1 point) What is Lenz’s Law? To which basic principle of physics is it most closely related? 1) Lenz’s law = The induced current in a loop is in the direction that creates a magnetic field that opp ...
... Partial credit may be given even if the final answer is incorrect so please show all work! Question 1 (1 point) What is Lenz’s Law? To which basic principle of physics is it most closely related? 1) Lenz’s law = The induced current in a loop is in the direction that creates a magnetic field that opp ...
Game
... A- He shared his invention with other scientists. B- He told no one of his investigation. C- He did not think he had discovered ...
... A- He shared his invention with other scientists. B- He told no one of his investigation. C- He did not think he had discovered ...
Quiz on Domestic Electrical Appliances
... 3. What is the function of the insulation layer inside the heating element of an electric kettle? Prevent heat leakage ...
... 3. What is the function of the insulation layer inside the heating element of an electric kettle? Prevent heat leakage ...
Galvanometer
A galvanometer is a type of sensitive ammeter: an instrument for detecting electric current. It is an analog electromechanical actuator that produces a rotary deflection of some type of pointer in response to electric current through its coil in a magnetic field.Galvanometers were the first instruments used to detect and measure electric currents. Sensitive galvanometers were used to detect signals from long submarine cables, and to discover the electrical activity of the heart and brain. Some galvanometers use a solid pointer on a scale to show measurements; other very sensitive types use a miniature mirror and a beam of light to provide mechanical amplification of low-level signals. Initially a laboratory instrument relying on the Earth's own magnetic field to provide restoring force for the pointer, galvanometers were developed into compact, rugged, sensitive portable instruments essential to the development of electrotechnology. A type of galvanometer that records measurements permanently is the chart recorder. The term has expanded to include use of the same mechanism in recording, positioning, and servomechanism equipment.