A non-conducting, non-magnetic cylindrical object of mass n and carrying a static charge of Q is placed inside a long olenoid that is carrying a constant current I. Both the solenoid and the cylindrical object are motionless o begin with. Then, the current in the solenoid is turned off, and the cylindrical object begins to rotate. Which of he following statements is correct? O The solenoid must also rotate in the opposite direction as the cylindrical object in order to conserve angular momentum O The solenoid must also rotate in the same direction as the cylindrical object in order to conserve angular momentum O The solenoid will remain motionless even though the cylindrical object has begun to spin O The rotation of the cylindrical object must have been caused by a source of torque external to the solenoid

A non-conducting, non-magnetic cylindrical object of mass n and carrying a static charge of Q is placed inside a long olenoid that is carrying a constant current I. Both the solenoid and the cylindrical object are motionless o begin with. Then, the current in the solenoid is turned off, and the cylindrical object begins to rotate. Which of he following statements is correct? O The solenoid must also rotate in the opposite direction as the cylindrical object in order to conserve angular momentum O The solenoid must also rotate in the same direction as the cylindrical object in order to conserve angular momentum O The solenoid will remain motionless even though the cylindrical object has begun to spin O The rotation of the cylindrical object must have been caused by a source of torque external to the solenoid