chapter-2-part-2-electrostatic potential and capacitance

The capacitance between two plates increases with

• Shorter plate area and higher applied voltage

• Shorter play area and shorter distance between them

• Larger plate area, longer distance between plates and higher applied voltage

• Larger plate area and shorter distance between plates

The capacitance of 1 μF equals

• 10 ^-12 F

• 10^-8 F

• 10^-6 F

• 10^-4 F

The ohmmeter reading for a short circuited capacitor is

• Infinity

• Few kilo ohms

• Few megaohms

• Zero

The units of capacitance are

• Volts/coulomb

• Coulombs/volt

• Henry/wb

• Ohms

The inverse of capacitance is called

• Reluctance

• Conductance

• Susceptance

• Elastance

Three capacitors each of the capacity C are given. The resultant capacity 2/3 C can be obtained by using them

• All in series

• All in parallel

• Two in parallel and third in the series with this combination

• Two in series and third in parallel across this combination

Which of the following capacitors will have the least value of breakdown voltage?

• Mica

• Paper

• Ceramic

• Electrolytic

In a capacitor the electric charge is stored in

• Metal plates

• Dielectric

• Both A and B

• None of the above

Which of the following capacitors will have least energy stored in it ?

• A 20 μF capacitor is charged to 400 volt

• A 1 μF capacitor charge to 5 KV

• A 600 μF capacity charged to 15 KV

• Energy stored in each above will be same

..............field is associated with the capacitor

• Electric

• Magnetic

• Both A and B

• None of the above