Electricity4
Practice Problems
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1
A resistor of ohms is connected in series with a resistor of ohms. What is the combined resistance of the circuit?
2
The circuit of problem 1 is connected to a volt battery and the current flows for minutes. How much power (in watts) is used?
3
Two resistors, R1= ohms and R2= ohms are connected in parallel. Calculate the combined resistance of the circuit.
4
The circuit of problem 3 is connected to a volt power supply. How much current (in amps) will flow through the power supply?
5
If the circuit of problem 4 operates for minutes, how much energy (in joules) will be used?
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