## Physics Help >> Index to Physics Homework Help »Electricity Quiz 1

 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 .

 1

What is the equivalent capacitance (in µF) between points A and B as shown if x is µF, y is µF, and z is µF?

 2
How much charge (in µC) can be stored by a parallel-plate capacitor with a plate area of square meters having air (8.85 X 10^-12 C^2/(Nm^2) between the plates where the magnitude of the electric field is MN/C?

 3
A wire with a resistance of ohm connected across a V source carries current for minutes. How much charge (in C) passes through the wire?

 4
An appliance draws amps of current when connected to 120 V. What is the cost (in \$) of operating it for hours at \$ per kWh?

 5
An appliance delivers J of energy when its capacitors discharge. If the device has a capacitance of mF, how much charge (in C) is delivered?

 6
A resistance thermometer has a resistaqnce of 40 ohm at a temperature of ºC. At what temperature (in ºC) will it have a resistance of ohm (linear coefficient of expansion = .00392 /ºC).

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.