Q15 of 25 Page 13

State the rule to determine the direction of a:

(i) magnetic field produced around a straight conductor carrying current.


(ii) force experienced by a current-carrying straight conductor placed in a magnetic field which is perpendicular to it.


(iii) current induced in a straight conductor moving in a magnetic field. ( CBSE 2005)

(i) The direction of magnetic field produced around a straight current-carrying conductor is determined by using Maxwell's right hand thumb rule.

(ii) The direction of force experienced by a current-carrying straight conductor placed in a magnetic field is determined by Fleming's left-hand rule.


(iii) The direction of current induced in a straight conductor moving in a magnetic field is determined by Fleming's right-hand rule.

More from this chapter

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13

What is meant by the tern,”Magnetic field”? Why does a compass needle shows deflection when brought near a bar magnet? ( CBSE 2008)

 14

Explain the meaning of the word ‘electromagnetic’ and ‘induction’ in the term electromagnetic induction. On what factors does the value of induced current produced in a circuit depend? Name and state the rule used for determination of direction of induced current. State one practical application of this phenomenon in everyday life. (CBSE 2011)

 16

Two circular coils A and B are placed close to each other. If the current in the coil A is changed, will some current be induced in the coil B ? Give reason.
( CBSE 2012)

 17

A coil of insulated copper wire is connected to a galvanometer. What will happen if a bar magnet is

(i) pushed into the coil


(ii) held stationary inside the coil


(iii) withdrawn from inside the coil. ( CBSE 2015)