Question

) Find the magnetic strength at center o​

Answer 1

Answer:

シᕼᗴYᗩ ᗰᗩTᗴ

Iᑎ YOᑌᖇ ᑫᑌᗴTIOᑎ ᗯᕼᗴᖇᗴ IՏ ᗪIᗩᘜᖇᗩᗰ ...

The magnetic field strength at the center of a circular loop is given by B=μ0I2R(at center of loop), where R is the radius of the loop. RHR-2 gives the direction of the field about the loop.

ᗰᗩY ᗷᗴ ITՏ ᕼᗴᒪᑭ シꨄꨄ

ᗰᗩᖇK ᗩՏ ᗷᖇᗩIᑎᒪIՏT ᑭᒪᗴᗩՏᗴ☻✔❦

Answer 2

At the center of a current carrying coil, the magnetic field intensity is directly proportional to the current and inversely proportional to the radius of the coil.
So, if the current is doubled and radius is halved, then the value of B increases by 4 times the initial value.