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 series circuit contains three resistors, R1=370 ohms, R2=480 ohms, and R3= ohms. They are connected to a potential difference of volts. How much current will flow through R2?

Three resistors of 20 ohms, 30 ohms, and 60 ohms are connected in series with a battery. A current of amps flows in the circuit. What is the potential difference being supplied?

What is the combined resistance of two resistors, ohms each, when they are connected in parallel and placed in a circuit?

A resistor R1= ohms is placed in parallel with another resistor R2=480 ohms and the combination is connected to a potential difference of 50 volts. How much current will flow through R1 in this arrangement?

Suppose the circuit in problem 4 operates for 10 seconds. How much power will be supplied to R1?

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.
Need help? Try these test-taking tools:
Constants Conversions calculator