When you have a photovoltaic cell, a photovoltaic panel, and a photovoltaic array, which is the smallest unit? ______
a. the photovoltaic cell
b. the photovoltaic panel
c. the photovoltaic array.
A
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For maximum element life, the element must have sufficient air over all parts of the element to prevent any part of the element from glowing red.
Answer the following statement true (T) or false (F)
If the current is 0 A in Figure 13-2, maybe ________
A) the resistor is open B) the inductor is shorted C) the resistor has changed values to 100 ? D) the capacitor is shorted
A good conductor of electricity is said to have ____________________ electrons which can move easily from one atom to another.
Fill in the blank(s) with the appropriate word(s).
The subsequent problems deal with the following PIC circuit, where the PORTB pins are attached directly up to the individual segments of a 7-segment LED display as shown. (Note - All seven segments "a"-"g" are wired as shown for segment "g," with a pull-up resistor to 5V.) Assume the PORTB pins are declared as outputs.
Which of the following statements would make a "3" appear on the LED display?
A. PORTB = %00000110 B. PORTB = %01100000 C. PORTB = %00000011 D. PORTB = %10011111 E. PORTB = %11111001