### Electrostatics Objectives Part 05

**81 . ** A mica capacitor and ceramic capacitor have the same physical dimensions. Which has higher value of capacitance?** Ceramic capacitor**

**82 **. For the same rating which capacitor is physically smaller? **Ceramic capacitor**

**83 . ** If an ohmmeter, values immediately goes practically to zero and stays there, capacitor is** short circuited**

**84 .** For a good 0.05uf capacitor, ohmmeter reading should **show low resistance momentarily and back off to a very high resistance**

**85 . ** A 10uf capacitor charged to 10v has a stored energy equal to **100uC.**

**86 . ** Voltage applied across a ceramic dielectric produces an electrostatic field 100 times greater than in air. The dielectric constant of the ceramic equals **100**

**87 . ** The charge in a 4uf capacitor charged to 100v will be** 400uC.**

**88 . ** A six dot mica capacitor color coded white, red, green, brown, red and yellow has the capacitance value of **250pf**

**89 . ** A capacitor has a value of 100pf. It means** capacitor can store 100*10^-12C of charge with 1v.**

**90 . ** If a capacitor shows charging but the final resistance reading is appreciably less than normal, the capacitor is **of high capacitance value**

**91 . ** The ohmmeter reading for a short capacitor is** 0**

**92 .** Capacitance increases with **larger plate area and less distance between plates**

**93 . ** The electric field on equipotential surface is **parallel to surface**

**94 .** Surface integral of electric field intensity is** differential of volume flux**

**95 . ** Which of the following capacitors will have least energy stored in it?** A 500pf capacitor charged to 10kv**

**96 .** A 2uf capacitor is charged by a constant 3uA charging current for 4s. The voltage across the capacitor will be** 6v.**

**97 . ** If I be the current, C the capacitance and V the PD then I/CV will have the** frequency**

**98 .** If earth is assumed to be metallic sphere of radius 6400 kms, its capacitance will be nearly **0.71uf**

**99 . ** A capacitor has two **conductors separated by an insulator**

**100 .** Voltage applied across a ceramic dielectric produces an electrostatic field 100times greater than in air. The dielectric constant K of the ceramic will be** 100**