A long solenoid is formed by winding 40` turns//cm `The current necessary for 40 mT inside the solenoid will be approximately equal to

A long solenoid is formed by winding 20 turns/cm. The current necessary to produce a magnetic field of 20 millitesla inside the solenoid will be approximately ( mu_0/(4pi)=10^(-7) tesla-metre/ampere)

A long solenoid is formed by winding 20 turns cm^-1 . What current is necessary to produce a magnetic field of 20 mT inside the solenoid?

A long solenoid is formed by winding 20 turns cm^-1 . What current is necessary to produce a magnetic field of 20 mT inside the solenoid?

A long solenoid is formed by winding 20 turns cm^-1 . What current is necessary to produce a magnetic field of 20 mT inside the solenoid?

A long solenoid with 15 turns per cm has a small loop of area 2.0 cm^2 placed inside the solenoid normal to its axis. If the current carried by the solenoid changes steadily from 2.0 A to 4.0 A in 0.1 s, what Is the Induced emf In the loop while the current is changing?

A long solenoid with 15 turns per cm has a small loop of area 2.0 "cm"^2 placed inside the solenoid normal to its axis. If the current carried by the solenoid changes steadily from 2.0 A to 4.0 A in 0.1 s, what is the induced emf in the loop while the current is changing ?