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Question :1     A proton enters in a straight line in a uniform magnetic field along the field direction. How will its path and velocity change? Answer:    As the proton is moving along the field direction, thus no force acts on it and the velocity and the path will not change. It will keep on moving with the same speed along the field direction. Question :2     A positive charge is moving vertically upwards in magnetic field towards south. In which direction will it be deflected? Answer:    If positive charge is moving upwards the corresponding current is also upwards, the magnetic field is towards south. Using Fleming’s left hand rule force is towards east and deflection towards east. Question :3     Free electrons always keep on moving in the conductor. Even then no magnetic force acts on them in a magnetic field. Why? Answer:    In the absence of external potential di...

Central Public School,Samastipur and Sadhana Devi Vidyapith Assignment SA-1 Chapter: Magnetic Effects of Electric Current Section-A [1marks] 1. What does the direction of thumb indicate in the right-hand thumb rule? 2. What is the frequency of alternating current in India? 3. How will you use a solenoid to magnetize a steel bar? 4. An alternating electric current has a frequency of 50 Hz. How many times does it change its direction in one second? 5. Name devices which produce: (i) alternating current, (ii) direct current. 6. Name the physicist who discovered the magnetic effect of the electric current. 7. A straight copper conductor is held parallel to the axis of a freely suspended magnetic needle such that the conductor is under the needle and the current is flowing from south to north. In which direction the north of magnetic needle will move? 8. If a copper conductor carrying a current is held in north-south direction, in which direction will its magnetic ...

CBSE PHYSICS: ASSIGNMENT ON MAGNETIC EFFECTS OF CURRENT CBSE PHYSICS: ASSIGNMENT ON MAGNETIC EFFECTS OF CURRENT   Topic Wise:  CBSE PHYSICS  TYPE  A MAGNETIC FIELD and  FIELD LINES 1. What effects do you expect on passing current through a conductor? 2. How it can be shown that a current carrying conductor produces a magnetic field? 3. Why compass always align itself in approximately north–south direction? 4. Why some substances exhibit   magnetism   naturally, while others don’t? 5. What do you mean by ‘magnetic field lines’?  6. List the characteristics of magnetic field lines? 7. How magnetic field lines are drawn? 8. How one can represent a region of  uniform magnetic field  using magnetic field lines? 9. Why two magnetic field lines never cross each other? 10. What is the direction of magnetic field line...

X Physics: Magnetic Effects of Currents X Physics: Magnetic Effects of Currents CBSE Chapter Notes Download File X Physics: Magnetic Effects of Currents  : NCERT Solutions Download File   X Physics: Magnetic Effects of Currents CBSE Test Paper – 1 Download File X Physics: Magnetic Effects of Currents CBSE Test Paper – 2 Download File X Physics: Magnetic Effects of Currents CBSE Test Paper – 3 Download File X Physics: Magnetic Effects of Currents  CBSE Assignment – 1 Download File X Physics: Magnetic Effects of Currents  CBSE Assignment  - 2  Download File X Physics: Magnetic Effects of Currents  CBSE Assignment  - 3  Download File  X Physics: Magnetic Effects of Currents X Physics: Magnetic Effects of Currents: CBSE Hot questions  Download File X Physics: Magnetic...

Q. What do you understand by magnetic effect of electric current? Ans: The phenomenon due to which, a wire behaves like a magnet when electric current is passed through it, is called as the magnetic effect of electric current. Q. What is magnetic field?  Ans: The region around the magnet, where force of attraction or repulsion can be felt by magnetic materials, is called as magnetic field. Q. Why does a compass needle get deflected when brought near a bar magnet ? Ans: The magnet exerts its influence in the region surrounding it.So, the compass needle shows deflection when brought near a magnet or an electromagnet. Q. Why two magnetic field lines do not intersect each other? Ans: The magnetic field lines the magnetic field lines form closed curves and originate in fix direction inside and out side magnet so magnetic field lines do not intersect each other. Q. What happens to the deflection of the compass needle placed at a given point if the current in the straight copper w...

Q. If the magnetic field and the direction of movement of conductor is parallel,  then in what direction does the induced current flows ?  Ans: The directions of current, field and force are always perpendicular to each other on account of the Fleming's rule, none of them can be  parallel .  Q. If the direction of current and  magnetic field  is  parallel  the in which direction does the force on the conductor acts?  Ans: The directions of current, field and force are always perpendicular to each other on account of the Fleming's rule, none of them can be  parallel .  Q. Consider a circular loop of wire lying in  the plane  of the table and current is passed thru  the loop  clock wise then by applying right hand rule find the direction of  magnetic field  lines inside and outside  the loop ?  Ans: According to the right hand thumb rule, the direction of  the magnetic  field would be ...

State the rule to determine the direction of a                      a) Magnetic field produced around a conductor carrying current.                                                              b) The force experienced by current carrying straight conductor placed in a magnetic field perpendicular to it.  c) Current induced in a coil due to its rotation in a magnetic field. From the following statement write down that which is applicable to a commutator.                                                    a) galvanometer uses commutator for deadbeat                        b) transformer u...

Magnetic Effect of Current Chapter 13 Student CBSE Worksheet Download File X Magnetic Effects of Currents CBSE Hot questions Download File X Magnetic Effects of Currents Important questions Download File X Magnetic Effects of Currents CBSE Question Banks                                                                                             Download File   For more test papers and sample paper related to this chapter Visit:        Link01          Link 02