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Electric Potential, Energy and...
Practice Questions 1

1 .       Which of the following is not a unit for the electric field? [Hint]

 
 
 
 


2 .       A 9 volt transistor battery has [Hint]

 
 
 
 
 


3 .       The unit of capacitance is the [Hint]

 
 
 
 


4 .       The unit for the dielectric constant is [Hint]

 
 
 
 


5 .       A farad is [Hint]

 
 
 
 


6 .       A capacitor has circular plates of radius 10 cm separated by 1 mm. Its capacitance is [Hint]

 
 
 
 


7 .       A capacitor has circular plates of radius 10 cm separated by 1 mm. If the capacitor is connected to a 12 volt battery, the charge on the capacitor will be [Hint]

 
 
 
 


8 .       What is the electric field in the capacitor in the previous question? [Hint]

 
 
 
 


9 .       What would be the energy stored in the capacitor in the previous question? [Hint]

 
 
 
 


10 .       A dielectric is inserted into the capacitor in the previous question and the stored energy is found to be 0.092 microJ, the dielectric is [Hint]

 
 
 
 


11 .       Capacitor 1 has capacitance C1 and voltage V1. Capacitor 2 has twice the capacitance and the same voltage. Its energy U2 equals [Hint]

 
 
 
 


12 .       Capacitor 1 has capacitance C1 and voltage V1. Capacitor 2 has twice the voltage and the same capacitance. Its energy U2 equals [Hint]

 
 
 
 


13 .       Two capacitors have the same capacitance but the second has twice the charge of the first. Its stored energy is [Hint]

 
 
 
 






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