Electric Current and Circuits

Electric Current and Circuits Principles

Electric Current and Circuits Principles

Articles
Title
A total charge of 2.4 C passes a point in a circuit in 10 milliseconds. What is the magnitude of the electric current?
In the diagram, what is the voltage drop across the third resistor (R3)?
A space heater with a resistance of 12 ohms is connected to a 120-V power supply. How much energy is transferred to thermal energy as this device operates for 2 hours?
A resistor dissipates 100 kW of power when a 5-A current passes through it. What is the value of its resistance?
A 9-V battery drives 3 A of electric current through a resistor. What is the power dissipated by the resistor?
For the circuit in the diagram, what is the equivalent resistance?
In a basic circuit consisting of a battery and a thermal resistor, what happens when the voltage is doubled?

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