WHAT IS THE DIFFERENCE BETWEEN AC AND DC CURENT ?
notes of magnetic effects of electric current
Explain why, a freely suspended magnet always points in the North-South direction.
About 3-4 mark answer please!
WHY DON'T TWO MAGNETIC FIELD LINES INTERSECT EACH OTHER?
explain different ways to induce current in a coil.
Explain what is short circuiting and overloading in an electric supply.
Draw a labelled diagram of an electric motor. Explain its principle and working. What is the function of a split ring in an electric motor?
give reason why (i)tungsten is used for making filament of electric lamps; (ii) the elements of heating electrical appliaces are made up of an alloy rather than pure metal
Explain the underlying principle and working of an electric generator by drawing a labelled diagram. What is the function of brushes?
explain constuction and principle of a.c. generator with diagram?
What is Difference between Short Circuit & overloading?
Please answer it with about 4 points.
A circuit has a fuse of 5A.find the maximum number of 100W 220V lamp that can be used in a circuit.
Magnetic field is scalar or vector quantity ? Give reasons for your answer.
state and explain properly maxwell right hand thumb rule
List the factors on which the magnetic field produced by a current carrying straight conductor depends ? State the rule which gives the direction of its magnetic field. Draw the pattern of magnetic field lines due to a straight current carrying conductor.
WHAT IS THE DIFFERENCE BETWEEN AC AND DC CURENT ?
notes of magnetic effects of electric current
Explain why, a freely suspended magnet always points in the North-South direction.
About 3-4 mark answer please!
WHY DON'T TWO MAGNETIC FIELD LINES INTERSECT EACH OTHER?
explain different ways to induce current in a coil.
Explain what is short circuiting and overloading in an electric supply.
Draw a labelled diagram of an electric motor. Explain its principle and working. What is the function of a split ring in an electric motor?
give reason why (i)tungsten is used for making filament of electric lamps; (ii) the elements of heating electrical appliaces are made up of an alloy rather than pure metal
Explain the underlying principle and working of an electric generator by drawing a labelled diagram. What is the function of brushes?
explain constuction and principle of a.c. generator with diagram?
What is Difference between Short Circuit & overloading?
Please answer it with about 4 points.
A circuit has a fuse of 5A.find the maximum number of 100W 220V lamp that can be used in a circuit.
Magnetic field is scalar or vector quantity ? Give reasons for your answer.
state and explain properly maxwell right hand thumb rule
List the factors on which the magnetic field produced by a current carrying straight conductor depends ? State the rule which gives the direction of its magnetic field. Draw the pattern of magnetic field lines due to a straight current carrying conductor.