Questionbank on magnetic effects of electric current
Answers
Define a solenoid. Compare the magnetic field produced by a solenoid with that of a bar magnet?
Give one important advantage of AC over DC
Give the circuit symbol for a fuse. Explain its importance in a circuit.
PQ is conductor × represents magnetic is ⊥ to the paper field and into the plane of the paper.
What is meant by earthing? Why should electrical appliances be earthed?
Define Electromotive force.
State Fleming’s right Hand Rule. Give the principle, construction and working of the AC generator with a simple diagram. What modification will you suggest so that the output is DC
Distinguish between a solenoid and a bar magnet. Draw the magnetic lines for both
How will you find out the direction of the magnetic field produced by current-carrying conductor?
Answer:
DEFINE MAGNET?
DEFINE MAGNETIC FIELD?
DEFINE MAGNETC FIELD LINES?
DEFINE ADVANTAGE OF MFL(MAGNETIC FIELD LINES)?
DEFINE RIGHT HAND THUMB RULE?
DEFINE SOLLINOID?
DEFINE FLEMMING LEFT HAND RULE AND RIGHT HAND RULE?
DEFINE ELECTRIC MOTOR?
DEFINE ELECTRIC GENERATOR?
DEFINE DOMESTIC ELECRIC CIRCUIT?
DEFINE AC AND DC?
DEFINE COMUTATOR?
DEFINE ELECTROMAGNETIC INDUCTION?