Question

Mark the correct statement the magnitude of current induced in the coil can be increased

• A. by winding the coil on a soft iron core.
• B. by increasing the number of turns in the coil.
• C. by increasing the strength of magnet.
• D. all

Answer 1

Answer: (D)

all

After performing a large number of experiments, Faraday and Henry made the following observations about electromagnetic induction
1) a current is induced in a coil when it is moved(rotated) relative to a fixed magnet.
2)a current is also induced in a fixed coil when a magnet is moved (or rotated) relative to the fixed coil.
3)no current is induced in a coil when the coil and magnet both are stationary relative to one another.
4) when the direction of motion of coil (or magnet) is reversed, the direction of current induced in the coil also get reversed.
5) the magnitude of current induced in the coil can be increased.
A) by winding the coil on a soft iron core.
B)by increasing the number of turns in the coil.
C) by increasing the strength of magnet.
D) by increasing the speed of rotation of coil (magnet).