Which statement about an electromagnet is true?

Consider two metallic rods mounted on insulated supports. one is neutral, the other positively charged. you bring the two rods close to each, but without contact, and briefly ground the the neutral rod by touching it with your hand. show answer correct answer what would be resulting charge (if any) on the initially neutral rod

Which lists the pairs of plates in order from least to greatest in terms of the work done to move the electron?

How many neutrons does element x if it’s atomic number is 28 and its mass number is 87