Exam-style question
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What is the effect of a dielectric material on the capacitance of a capacitor?.
- A.It decreases capacitance
- B.It increases capacitance
- C.It has no effect on capacitance
- D.It changes the voltage across the capacitor
Model answer
What a good answer should say
- It increases capacitance
Explanation
Why this works
A dielectric material increases the capacitance of a capacitor by reducing the electric field between the plates, allowing more charge to be stored for the same potential difference.
Common mistake
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