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प्रश्न
What type of core should be put inside a current-carrying solenoid to make an electromagnet?
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उत्तर
A soft iron rod should be put inside a current-carrying solenoid to make an electromagnet.
संबंधित प्रश्न
The magnetic field inside a long straight solenoid-carrying current ______.
State whether the following statement is true or false:
The magnetic field inside a long circular coil carrying current well be parallel straight lines.
The front face of a circular wire carrying current behaves like a north pole. The direction of current in this face of circular wire is:
(a) clockwise
(b) downwards
(c) anticlockwise
(d) upwards
A current-carrying straight wire is held in exactly vertical position. If the current passes through this wire in the vertically upward direction, what is the direction of magnetic field produced by it? Name the rule used to find the direction of magnetic field.
State two ways to increase the force on a current-carrying conductor in a magnetic held.
In the simple electric motor of figure given below, the coil rotates anticlockwise as seen by the eye from the position X when current flows in the coil
Is the current flowing clockwise or anticlockwise around the coil when viewed from above?
Name and state the law which is used to determine the direction of force on a current carrying conductor placed in a magnetic field.
Name and state the rule of determine the direction of force experienced by a current carrying straight conductor placed in a uniform magnetic field which is perpendicular to it.
State Fleming’s left-hand rule.
The following diagram shows two parallel straight conductors carrying the same current. Copy the diagram and draw the pattern of the magnetic field lines around them showing their directions. What is the magnitude of the magnetic field at a point 'X' which is equidistant from the conductors? Give justification for your answer.
