Q. 185.0( 3 Votes )
How will the magnetic field produced at a point P by a current carrying-circular coil change if we increase the
i. value of current flowing through the coil,
ii. distance of the point P from the coil,
iii. number of turns of the coil?
i. The magnetic field is directly proportional to the magnitude of current flowing through a current carrying coil. There is increase in the magnetic field strength with the increase in current.
ii. The distance of point P is inversely proportional to the strength of magnetic field at P. Thus, more the distance, lesser is the magnetic field strength.
iii. The number of turns is directly proportional to the magnetic field strength. More the number of turns, more is the magnetic field strength.
Rate this question :
What is the principle of an electromagnet?All In One Science
What is difference in the pattern of magnetic field due to a circular loop and inside a solenoid?All In One Science
The directions of current flowing in the coil of an electromagnet at its two ends X and Y are as shown below:
(a) What is the polarity of end X?
(b) What is the polarity of end Y?
(c) Name and state the rule which you have used to determine the polarities.Lakhmir Singh & Manjit Kaur - Physics
Name one medical technique which is based on magnetism produced in human body. For what purpose is this technique used?Lakhmir Singh & Manjit Kaur - Physics
Name of the technique by which doctors can produce pictures showing insides of the human body.Lakhmir Singh & Manjit Kaur - Physics