Electrostatic

121. Which of the following capacitors can be used for temperature compensation?

1. Air capacitor
2. Ceramic capacitor
3. Paper capacitor
4. None of the above

View answer

122. Which of the following capacitors has relatively shorter shelf life?

1. Mica capacitor
2. Electrolytic capacitor
3. Ceramic capacitor
4. Paper capacitor

View answer

123. Which of the following capacitors is marked for polarity?

1. Air
2. Paper
3. Mica
4. Electrolytic

View answer

124. Which of the following capacitors preferred for high frequency circuits?

1. Air capacitor
2. Electrolytic capacitor
3. Mica capacitor
4. none of the above

View answer

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

1. Mica
2. Paper
3. Ceramic
4. Electrolytic

View answer

126. 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

View answer

127. Which of the following expression is correct for electric field strength?

1. E = D/E
2. E = D2/t
3. E = jtD
4. E= nD2

View answer

128. Which of the following is not a vector?

1. Linear momentum
2. Angular momentum
3. Electric field
4. Electric potential

View answer

129. Which of the following material has least value of dielectric constant?

1. Ceramics
2. Oil
3. Glass
4. Paper

View answer

130. Which of the following materials has the highest value of dielectric constant?

1. Glass
2. Vacuum
3. Ceramics
4. Oil

View answer