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Unformatted text preview: resistance per meter, and the bird’s feet are 4.0cm apart. What is the potential difference between the bird’s feet? 30) A 115V fish tank heater is rated at 110W. Calculate a) the current through the heater when it is operating b) its resistance? 34) At $0.095 per kWh, what does it cost to leave a 25W porch light on day and night for a year? 45) The peak value of an alternating current in a 1500W device is 5.4A. What is the rms voltage across it?...
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