1. Which of the following statement about a capacitor is correct? a. stores chemical energy through the metal plates b. temporary storage of electric charges c. consists of two insulators separated by a conductor d. made up of metal plates connected by a battery 2. The metal plates of a capacitor were replaced with a bigger surface area. What will happen to its capacitance? a. decrease b. remain the same c. increase d. cannot be determined 3. What will happen to the capacitance of a capacitor if the charge is doubled? a decrease b. remain the same c. increase d. cannot be determined pr items 4-5. Two students were given a task to connect a 2 µF capacitor and a 6 uF spacitor. 4. What type of connection will the 2 uF obtain a greater charge? a. series b. parallel 5. What type of connection will the 2 uF obtain a greater potential difference? c. both a & b d. neither a or b a. series b. parallel c. both a & b d. neither a or b
Dielectric Constant Of Water
Water constitutes about 70% of earth. Some important distinguishing properties of water are high molar concentration, small dissociation constant and high dielectric constant.
Electrostatic Potential and Capacitance
An electrostatic force is a force caused by stationary electric charges /fields. The electrostatic force is caused by the transfer of electrons in conducting materials. Coulomb’s law determines the amount of force between two stationary, charged particles. The electric force is the force which acts between two stationary charges. It is also called Coulomb force.
Multiple Choices: Choose the BEST answer for each item.
- Which of the following statement about a capacitor is correct?
- stores chemical energy through the metal plates
- temporary storage of electric charges
- consists of two insulators separated by a conductor
- made up of metal plates connected by a battery
- The metal plates of a capacitor were replaced with a bigger surface area. What will happen to its capacitance?
- decrease increase
- remain the same cannot be determined
- What will happen to the capacitance of a capacitor if the charge is doubled?
- decrease increase
- remain the same cannot be determined
For items 4-5.
Two students were given a task to connect a 2 µF capacitor and a 6 µF capacitor.
- What type of connection will the 2 µF obtain a greater charge?
- series both a & b
- parallel neither a or b
- What type of connection will the 2 µF obtain a greater potential difference?
- series both a & b
- parallel neither a or b
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