124 • Name:

  1. Brother XR 7700 Brother XR 7700
    1. __________ _____ For a Brother XR-7700 sewing machine, calculate the power used based on the information in the images.
    2. __________ _____ For a Brother XR-7700 sewing machine, calculate the resistance.
  2. ___________ __________ What type of circuit produces "no light and no heat"?
  3. ___________ __________ What type of circuit produces "light but no heat"?
  4. ___________ __________ What type of circuit produces "heat but no light" (the wires become hot)?
  5. Plot the data below on the graph provided. Draw a best fit trend line through the data.
    Optical image depth

    Data

    current (A)voltage (V)
    00
    0.32.1
    0.64.2
    0.96.3
    1.28.4
    background rectangle major grid lines axes text layers Current versus voltage current (A) voltage (volts) y-axis labels 0 2 4 6 8 10 x-axis labels 0 0.4 0.8 1.2 1.6 2.0

    ____________ ________ For the data above, what is the resistance?
  6. List three forms of alternate energy generation

Using the information in the table below and the elelctrical equations, fill in the blank cells with the correct values of voltage, current, power, and resistance.

ApplianceImagePower (w)Voltage (V)Current (A)Resistance (Ω)
7. Spar mixer spar mixer 2400220
8. Salad slicer Salad slicer 1205.0
9. Bone saw Bone saw 700220
10. Induction motor Induction motor 24040

slope m= (y2−y1) (x2−x1)
percent error= (experimental value−expected value) (expected value)
Voltage V = current i * resistance R
Power P = iV