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प्रश्न
State whether the following statement are true or false:
A generator works on the principle of electromagnetic induction.
उत्तर
State whether the following statements are true or false:
True. Generator works on the principle of electromagnetic induction.
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संबंधित प्रश्न
The device used for producing electric current is called _________.
Prove theoretically (electromagnetic induction) `e = (dphi)/(dt)`
Write some of the important uses of electromagnets.
The north-south polarities of an electromagnet can be found easily by using:
(a) Fleming's right-hand rule
(b) Fleming's left-hand rule
(c) Clock face rule
(d) Left-hand thumb rule
- What kind of energy change takes place when a magnet is moved towards a coil having a galvanometer at its ends?
- Name the phenomenon.
Name and state the law which determines the direction of induced current.
or
State Fleming’s right-hand rule.
Write Fleming’s right hand thumb rule with the help of diagram.
An electron moves on a straight-line path XY as shown in the figure. The coil abcd is adjacent to the path of the electron. What will be the direction of the current, if any, induced in the coil?
A straight metal wire crosses a magnetic field of flux 4 mWb in a time 0.4 s. Find the magnitude of the emf induced in the wire.
