Question: The capacity of a lead-acid cell does not depend on its___________?

• 1. temperature
• 2. rate of charge
• 3. rate of discharge
• 4. quantity of active material

Question: When a lead-acid battery is in fully charged condition, the color of its positive plate is__________?

• 1. dark grey
• 2. brown
• 3. dark brown
• 4. none of above

Question: The mass of an ion liberated at an electrode is directly proportional to the quantity of electricity. The statement is associated with____________?

• 1. Newton’s law
• 2. Faraday’s law of electromagnetic
• 3. Faraday’s law of electrolysis
• 4. Gauss’s law

Question: During charging the specific gravity of the electrolyte of a lead-acid battery:

• 1. increases
• 2. decreases
• 3. remains the same
• 4. becomes zero

Question: The active materials of a nickel-iron battery are___________?

• 1. nickel hydroxide
• 2. powdered iron and its oxide
• 3. 21% solution of KOH
• 4. all of the above

Question: In the case of a lossy capacitor, its series equivalent resistance value will be_______________?

• 1. small
• 2. very small
• 3. large
• 4. zero

Question: Which of the following capacitors has relatively shorter shelf life____________?

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

Question: 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

Question: 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

Question: Which of the following materials has the highest value of dielectric constant___________?

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