Question: For which of the following parameter variation, the capacitance of the capacitor remains unaffected ____________?
- 1. Distance between plates
- 2. Area of the plates
- 3. Nature of dielectric
- 4. Thickness of the plates
Question: Which of the following capacitors will have the least variation ____________?
- 1. Paper capacitor
- 2. Ceramic capacitor
- 3. Silver plated mica capacitor
- 4. None of the above
Question: In a capacitor the electric charge is stored in____________?
- 1. metal plates
- 2. dielectric
- 3. both (A) and (B)
- 4. none of the above
Question: “The total electric flux through any closed surface surrounding charges is equal to the amount oflcharge enclosed”. The above statement is associated with____________?
- 1. Coulomb’s square law
- 2. Gauss’s law
- 3. Maxwell’s first law
- 4. Maxwell’s second law
Question: Two plates of a parallel plate capacitor after being charged from a constant voltage source are separated apart by means of insulated handles, then the____________?
- 1. Voltage across the plates increases
- 2. voltage across the plates decreases
- 3. charge on the capacitor decreases
- 4. charge on the capacitor increases
Question: Voltage applied across a ceramic dielectric produces an electrolytic field 100 times greater than air. What will be the value of dielectric constant ________?
- 1. 50
- 2. 100
- 3. 150
- 4. 200
Question: Which of the following statements is correct ___________?
- 1. Air capacitors have a black band to indicate the outside foil
- 2. Electrolytic capacitor must be connected in the correct polarity
- 3. Ceramic capacitors must be connected in the correct polarity
- 4. Mica capacitors are available in capacitance value of 1 to 10 pF
Question: If A.C. voltage is applied to capacitive circuit, the alternating current can flow in the circuit because__________________?
- 1. varying voltage produces the charging and dicharging currents
- 2. of high peak value
- 3. charging current can flow
- 4. discharge current can flow
Question: A dielectric material must be____________?
- 1. resistor
- 2. insulator
- 3. good conductor
- 4. semi conductor
Question: The capacitance of a capacitor is not affected by____________?
- 1. distance between plates
- 2. area of plates
- 3. thickness of plates
- 4. all of the above