Question
Question: A parallel plate capacitor is connected across a 2 V battery and charged. The battery is then discon...
A parallel plate capacitor is connected across a 2 V battery and charged. The battery is then disconnected and a glass slab is introduced between plates. Which of the following pairs of quantities decreases?
A
Charge and potential difference.
B
Potential difference and energy stored.
C
Energy stored and capacitance.
D
Capacitance and charge.
Answer
Potential difference and energy stored.
Explanation
Solution
: When battery is disconnected, charge remains constant. On introducing glass slab, capacity increases. Potential difference and energy stord decreases.