Capacitors

The insulating layer of a cacitor is called the 

• plate
• conductors
• dielectric
• terminals

Capacitors well hold a charge until

• the applied voltage drops to zero
• 5 time constants
• an external discharge path is provided
• 1 time constant

------------------------ is created out of two metal plates and an insulating material called a dielectric.

• An inductor
• A capacitor
• A fixed resistor
• A variable resistor

Is it correct to say that the capacitance is inversely proportional to the area of the parallel plates?

• True

• False

Is there a limit to the amount of charge that capacitor can hold and why/why not?

• Yes, as the ratio of charge to p.d. is fixed.

• Yes, because the dielectric will breakdown in such a large field and charge will remain.

• No, as capacitance can always increase as p.d. increases.

• Yes, because the dielectric will breakdown in such a large field and charge will flow.

Tags

NGSS.HS-PS2-5