A copper wire having resistance 0.01 ohm in each metre is used to wind a 400 –turn solenoid of radius 1.0cm and length 20 cm. Find the emf of a battery (in volt) which when connected across the solenoid will cause a magnetic field of 1.0×10−2 T near the centre of the solenoid.
A copper wire having resistance in each metre is used to wind a 400 –turn solenoid of radius and length . Find the emf of a battery (in volt) which when connected across the solenoid will cause a magnetic field of T near the centre of the solenoid.