Electrostatic

131. Which of the following statement is true?

1. The current in the discharging capacitor grows linearly
2. The current in the dicharging capacitor grows exponentially
3. The current in the discharging capacitor decays exponentially
4. The current in the discharging capacitor decreases constantly

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132. 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

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133. Which of the following statements is incorrect?

1. The leakage resistance of ceramic capacitors is generally high
2. The stored energy in a capacitor decreases with reduction in value of capacitance
3. The stored energy in a capacitor increases with applied voltage
4. A wire cable has distributed capacitance between the conductors

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