A heater runs on an ac voltage of 120 v and draws a power
A heater runs on an AC voltage of 120 V and draws a power of 26 W. If this heater were run instead on a DC voltage of 70 V, how much current would flow through the heater? Hint: The heater can be modeled as a resistor.
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a transformer has an input coil with nin 400 turns and nout 1050 turns if the voltage across the input coil has an
a resistor with r 15 k is connected to an ac generator that operates at 60 hz with an amplitude of 49 v a find the
a fan is rotating at a rate of 740 rpm when the motor is turned off the blades slow to rest in 25 s what is the angular
the power brick for the authors laptop computer has a power rating of 60 w it uses a step-down transformer to convert
a heater runs on an ac voltage of 120 v and draws a power of 26 w if this heater were run instead on a dc voltage of 70
a a certain medical machine emits x-rays with a minimum wavelength of 002 nm one day the machine has an electrical
a 75 f capacitor is charged to 34 v and is then connected across a 11-mh inductor a how much energy is stored in the
if three 11 m fan blades are connected to a motor and accelerated uniformly from rest to 58 rpm in 11 minutesa
two 800mm x 800mm electrodes with a 010-mm-thick sheet of mylar between them are attached to a 80v battery without
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