21. If an electric field is given by 10i + 3j + 4k calculate the electric
... density each are placed parallel to each other at a distance d apart. The force per unit length exerted on one rod by the other will be ...
... density each are placed parallel to each other at a distance d apart. The force per unit length exerted on one rod by the other will be ...
Magnetism can produce current.
... to the coil. Because generators use a rotating electromagnet, the poles of the electromagnet alternate between moving toward and moving away from the magnet. The result is a current that reverses with each half-rotation of the coil. The illustration on the right shows a simple DC generator. DC gener ...
... to the coil. Because generators use a rotating electromagnet, the poles of the electromagnet alternate between moving toward and moving away from the magnet. The result is a current that reverses with each half-rotation of the coil. The illustration on the right shows a simple DC generator. DC gener ...
measurement of the charge/mass ratio for electrions
... displayed if you do not see a beam, turn the voltage knob (on the left) up until it is about 150V and turn the current knob (on the right) to about 1A. 3) You should now see the glowing beam created by the electrons. If everything is already working it should be moving in a circle and coming back ar ...
... displayed if you do not see a beam, turn the voltage knob (on the left) up until it is about 150V and turn the current knob (on the right) to about 1A. 3) You should now see the glowing beam created by the electrons. If everything is already working it should be moving in a circle and coming back ar ...
