Conductors, Dielectrics and Capacitors

The capacitance of a parallel-plate capacitor can be increased by: 

• increasing the charge 
• decreasing the charge 
• increasing the plate separation
• decreasing the plate separation 

What is the voltage across   the plates of the capacitor if  the capacitance is 10 uF and the Charge stored is  30 uC?

• 0.333 V
• 3 V
• 300 V

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

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

In the capacitor, the dielectric can be made out of all sorts of ---------- materials and the plates are made of a -------------- material.

• conductive, insulating 
• conductive, conductive
• insulating, conductive
• insulating, insulating

The figure to the right represents:

• Capacitor
• Diode
• Inductor
• Resistor

With respect to the capacitor, which relationship is true? •

• C = Q×V

• V = C×Q

• V = Q/C

• Q = C/V

With respect to the capacitor, which relationship is true?

• C = Q/V
• V = C×Q
• Q = C/V
• Q = V/C

How is the capacitance (C) of a parallel-plate capacitor affected by the charge on the plates ?

• C depend on the charge on the plates

• C is vanished when there are plates

• C does not depend on the charge on the plates

• C is accumulated on one side only

How is the capacitance of a parallel-plate capacitor affected by the potential difference across the capacitor ?

• C depend on the potential difference across the capacitor

• C does not depend on the potential difference across the capacitor

• C partially depend on the potential difference across the capacitor

• C sometime depend on the potential difference across the capacitor

How is the capacitance of a parallel-plate capacitor affected by the area of each plate?

• C is directly proportional to the area A of each plate

• C is inversely proportional to the area A of each plate

• C is partially proportional to the area A of each plate

• C is fully proportional to the area A of each plate