Correct option is D
The Correct Answer : (D) Direction of placement of the coil
Explanation:
The magnetic strength of an electromagnet depends on factors such as:
The magnetic strength of an electromagnet depends on factors such as:
- Length of the metallic core: A longer core would typically reduce the magnetic strength as it increases the resistance to the magnetic field.
- Current flowing through the coil: The strength of the magnetic field is directly proportional to the current. More current leads to a stronger magnetic field.
- Number of turns in the coil: The magnetic strength is also directly proportional to the number of turns in the coil. More turns result in a stronger magnetic field.
However, the direction of placement of the coil does not affect the magnetic strength. It may affect the orientation of the magnetic field, but not its strength.
Information Booster: The factors affecting the strength of an electromagnet are related to the physical parameters of the coil and the current, not the orientation or direction in which it is placed.
Additional Knowledge: The magnetic field of an electromagnet follows the right-hand rule, where the direction of the magnetic field is determined by the direction of the current and the number of turns in the coil.
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