Advertisements
Advertisements
प्रश्न
The part of the AC generator that passes the current from the armature coil to the external circuit is ______.
विकल्प
field magnetsplit rings
split rings
slip rings
brushes
Advertisements
उत्तर
The part of the AC generator that passes the current from the armature coil to the external circuit is brushes.
APPEARS IN
संबंधित प्रश्न
Name the phenomenon which is made use of in an electric generator.
Why are Thermal Power Stations usually located near a river?
The frequency of alternating current (a.c.) supply in India is:
(a) 0 Hz
(b) 50 Hz
(c) 60 Hz
(d) 100 Hz
In an a.c. generator the speed at which the coil rotates is doubled. How would this affect
- the frequency of output voltage,
- the maximum output voltage is doubled.
What energy conversion does take place in a generator when it is in use?
State one advantage of using a.c. over d.c.
The given figures 1 to 3 show the working of a simple A.C. generator. Study the diagrams and answers of the following questions.
(i) State and explain the principle underlying the working of a simple generator.
(ii) Where is the loop of wire placed?
(iii) What happens when the loop is rotated?
(iv) Indicate the direction of the current flow through the wire for the first half of the turn (in first figure). Name and state the rule used in finding the direction of the current.
(v) Indicate the direction of the current for the case shown in second figure.
(vi) Indicate the direction of current in the outer circuit (i.e., electric bulb) in first and third figure.
(vii) What type of current is shown in the above diagrams? Explain.
Observe the figure and write the answers to the questions asked.
- The construction shown in the figure is of which device?
- Explain the principle on which this device works.
- Write any three uses of this device.
A device for producing electric current is ______.
Draw and label the diagram of an AC generator.
