Practice Problems

New Problems reloads the page with new variable values in all questions. You must do this after grading the test to rework it another time.
Make sure to enter your answers in the specified units .
A resistor of ohms is connected in series with a resistor of ohms. What is the combined resistance of the circuit?

The circuit of problem 1 is connected to a volt battery and the current flows for minutes. How much power (in watts) is used?

Two resistors, R1= ohms and R2= ohms are connected in parallel. Calculate the combined resistance of the circuit.

The circuit of problem 3 is connected to a volt power supply. How much current (in amps) will flow through the power supply?

If the circuit of problem 4 operates for minutes, how much energy (in joules) will be used?

Once you have submitted your answers for grading by clicking the grade button, you cannot resubmit answers for the same Problem Set--you must use the 'New Problems' button first.
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Constants Conversions calculator