Acapacitor is connected to a 9 v battery and acquires a charge q. what is the charge on the capacitor if it is connected instead to an 18 v battery? a capacitor is connected to a 9 v battery and acquires a charge q. what is the charge on the capacitor if it is connected instead to an 18 v battery? q q/2 2q 4q

Option C is the correct answer.

Explanation:

We have charge stored in a capacitor

           Q = CV

C is the capacitance and V is the voltage.

A capacitor is connected to a 9 V battery and acquires a charge Q.

That is

          Q = C x 9 = 9C

What is the charge on the capacitor if it is connected instead to an 18 V battery

That is

          Q' = C x 18 = 9C x 2 = 2Q

Option C is the correct answer.      

a.metals can become magnetic if they have many spinning electrons that create magnetic fields.d.only some metals are attracted by magnets; these metals are called ferromagnetic.

d.wrapping an insulated wire around a metal with ferromagnetic properties and applying an electric current.

increase masses, decrease separation