4. A solenoid is wound as shown and attached to a battery. The magnetic field due to the current running through the sol

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4 A Solenoid Is Wound As Shown And Attached To A Battery The Magnetic Field Due To The Current Running Through The Sol 1 (46.52 KiB) Viewed 57 times

4. A solenoid is wound as shown and attached to a battery. The magnetic field due to the current running through the solenoid is indicated by the north and south poles shown. a. In what direction is the current pointing in the dashed box indicated to the left of the battery? b. You are running an experiment using the solenoid. The solenoid has one layer of 35 turns and produces the magnetic field strength you need for your experiment when the current in the solenoid is 400 mA. Unfortunately, this amount of current overheats the solenoid. You've determined that a current of 100 mA would be more appropriate. How would you change the solenoid to maintain the magnetic field strength but with the smaller current of 100 mA. Be quantitative with your answer. For example, if you say that you need to increase the diameter of the solenoid then you need to say by what factor it needs to be increased. S N Battery