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Ok. This is my understanding: So by attaching the voltmeter to the terminals of the container, we find the voltage of the battery (V). Now, we attach a resistor (with resistance r) to the terminals (so the resistor is in series). Let's say the resistance of the resistor attached to the batter...

couldnt you just attach the two ends to the terminals of a battery and then check the voltage to see if the capacitor charged

Homework Statement You are given a container with either a battery and a resistor or a capacitor inside it. There is also a positive and negative terminal sticking out of the container. Without looking inside, how will you determine what is inside the container? Materials include a...

Homework Statement Personal question: What is the voltage across each capacitor after the switch is closed? (It was previously calculated that the current after the switch is closed is .5 A) Homework Equations Q = CV Q = Qo*e^(-t/RC) V = IR The Attempt at a Solution The answer is 20 V...

so for the second question, energy increases by a factor of 2. Right?

Homework Statement The distance between two parallel plates is increased while they remain hooked to a battery. The energy stored in the capacitor will: AND The distance between two parallel plates is doubled while they remain hooked to a battery. The battery voltage also is doubled. The...