Coulombs Law and Electric Field
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Q. A capacitor of 10 µF is charged to a voltage of 5 V. What is the energy stored in the capacitor?
Q. If the electric potential at a point is 100 V and the charge at that point is 2 µC, what is the electric potential energy?
Q. If the potential difference across a capacitor is 12 V and its capacitance is 3 µF, what is the charge stored in the capacitor?
Q. If the potential difference across a capacitor is doubled, what happens to the stored energy?
Q. If two capacitors of 4 µF and 6 µF are connected in series, what is the total capacitance?
Q. If two charges of +3 µC and -3 µC are placed 0.2 m apart, what is the magnitude of the force between them?
Q. In a parallel circuit with a 12 V battery and two resistors of 4 Ω and 6 Ω, what is the total current supplied by the battery?
Q. In a parallel circuit with a total voltage of 12 V, what is the voltage across each resistor?
Q. Two charges, +4 µC and -4 µC, are placed 1 m apart. What is the net electric field at the midpoint between the charges?
Q. What is the capacitance of a capacitor that stores 0.01 C of charge at a potential difference of 5 V?
Q. What is the capacitance of a capacitor that stores 0.01 J of energy at a voltage of 10 V?
Q. What is the capacitance of a capacitor that stores 20 µC of charge at a potential difference of 5 V?
Q. What is the electric field between two parallel plates separated by 0.1 m with a potential difference of 100 V?
Q. What is the electric field due to a point charge of -4 µC at a distance of 0.25 m?
Q. What is the electric field strength at a distance of 2 m from a charge of +5 µC?
Q. What is the electric potential at a point 1 m away from a +1 C charge?
Q. What is the equivalent resistance of three 4 Ω resistors in series?
Q. What is the equivalent resistance of three resistors of 4 Ω, 6 Ω, and 12 Ω in series?
Q. What is the potential difference across a capacitor of 5 µF charged with 0.01 C?
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