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प्रश्न
Draw a neat labeled diagram of an A.C. generator
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उत्तर १
उत्तर २
The figure below shows the variation in induced e.m.f. relative to various positions of coil, during its one complete rotation. The e.m.f. is maximum when the coil is with its plane parallel to the magnetic field.
Diagram of A.C. generator
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संबंधित प्रश्न
Name some sources of direct current.
A rectangular coil of copper wires is rotated in a magnetic field. The direction of the induced current changes once in each______.
Each one of the following changes will increase emf (or voltage) in a simple generator except:
(a) increasing the number of turns in the armature coil
(b) winding the coil on a soft iron armature
(c) increasing the size of the gap in which the armature turns
(d) increasing the speed of rotation
The current induced in a closed circuit only if there is ______.
Name and state the principle of a simple a.c. generator. What is its use?
State one advantage of using a.c. over d.c.
Explain the difference:
AC generator and DC generator.
State change that you would make to convert an A.C. generator into a D.C. generator. Illustrate the change by a diagram.
The part of the AC generator that passes the current from the armature coil to the external circuit is ______.
A coil of insulated copper wire is connected to a galvanometer forming a loop and a magnet is:
A: Held stationary
B: Moved away along its axis
C: Moved towards along its axis
D: There will be an induced current in
