1.[I point] Let Q denote charge, V denote potential difference and U denote stor

Question

1.[I point] Let Q denote charge, V denote potential difference and U denote stored energy.Of these quantities, capacitors in series must have the same: A) Qonly B) Vonly C) UonlyD) 2and Uonly E) Vand U only 2. 13 points] Capacitors A and B are identical. Capacitor A is charged so it stores 4 J of energy and capacitor B is uncharged. The capacitors are then connected in parallel. Find the total stored energy in the capacitors now. 3. (3points] What total energy is stored in the group of capacitors shown if the potential difference V is equal to 50 v? 4. [3points] If 5.0 x 1021 electrons pass through a 20- resistor in 10 min, what is the potential difference across the resistor? Provide a derivation of your answer.

Explanation / Answer

Solving 1st question

We know if capacitor are in series ,charge across them is same so Charge is same

So option (A) is same

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