All Flashcards
What happens when the separation distance between capacitor plates decreases?
The capacitance increases, and the energy stored in the capacitor increases if the voltage is kept constant.
What happens when a dielectric material is inserted between the plates of a capacitor?
The capacitance increases.
What happens when the resistance in a circuit increases, assuming voltage remains constant?
The current decreases, according to Ohm's Law (V = IR).
What are the steps to analyze a DC circuit?
- Draw the circuit diagram. 2. Label the currents. 3. Apply Kirchhoff's Current Law (KCL). 4. Apply Kirchhoff's Voltage Law (KVL). 5. Use Ohm's Law (V = IR). 6. Solve the equations.
What are the steps to using Gauss's Law?
- Choose a Gaussian surface. 2. Calculate the electric flux. 3. Calculate the enclosed charge. 4. Solve for the electric field.
What is the definition of Electric Current?
Flow of electric charge (measured in Amperes, A).
What is the definition of Voltage?
Electric potential difference (measured in Volts, V).
What is the definition of Resistance?
Opposition to current flow (measured in Ohms, Ω).
What is the definition of Electric Power?
Rate of energy transfer (measured in Watts, W).
What is the definition of Electric Flux?
Measure of electric field through a surface.
Define Kirchhoff's Current Law (KCL).
Current in = Current out at a node.
Define Kirchhoff's Voltage Law (KVL).
Sum of voltage drops in a loop = 0.