The magnetic field lines around a current carrying straight conductor are concentric circles whose centre lies on the wire. To visualize the pattern of the magnetic field around a straight current—carrying conductor, we will do an experiment:
Take a stiff copper wire and pass it through the centre of a card board. Then, connect a battery source, a variable resistance through a switch i.e. K as shown in the figure
Place a compass on the cardboard and start the current by closing the switch. Compass needle get deflected and its deflection show the direction of magnetic field.
1. Mark the position of the north pole of the needle on the cardboard.
2. Place the compass ahead so that the south pole of the needle lies at the point marked for the previous position of the north pole.
Nichrome is an alloy of: | |||
Right Option : C | |||
View Explanation |
When we bring a magnetic compass near current carrying wire: | |||
Right Option : B | |||
View Explanation |
Two magnetic compass are placed on the either side of a current carrying straight conductor, then ___________________ | |||
Right Option : D | |||
View Explanation |
Abhyas is a complete education Institute. Here extreme care is taken by teacher with the help of regular exam. Extra classes also conducted by the institute, if the student is weak.
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