Page 1 - HA
P. 1
Objective Questions:
1. A.C generator works on the principle of
(a) force experience by a conductor in magnetic field
(b) electromagnetic induction
(c) electrostatic
(d) force experience by a charge particle in electric field.
2. Fleming’s left hand and Right hand rules are used in
(а) Generator and electric motor
(b) Electric motor and generator
(c) any rule can be used for any device
(d) both are not applied for generator and motor.
3. A D.C generator works on the principle of
(a) ohnis law
(b) Joule’s law of heating
(c) faraday’s law of electromagnetic induction.
(d) none of the above
4. To convert an AC generator into DC generator
(a) split-ring type commutator must be used
(b) slip rings and brushes must be used
(c) a stronger magnetic field has to be used
(d) a rectangular wire loop has to be used
5. A generator converts mechanical energy into ........ energy. It works on the basis
of ........
6. To produce DC, the output of a generator must be fed through a ..........
7. In any generator, the current in the armature is of the ...........type.
Subjective Questions:
1. Where is Fleming's right hand rule used?
2. What is difference between Fleming left and right hand rule?
3. What did the electric generator do?
4. Where is electric generator used?
5. State the rule which you use to find the direction of induced current or state
Fleming’s right hand rule.