In the block marked regulator below, a diode may be placed reverse across the regulator. Its job is to:
a. Block negative voltages from appearing at the output
b.
c. Blow a fuse if negative currents occur at the output
d. Bypass the regulator if higher voltages occur on the output of the regulator compared with the input
Your answer "b" is not correct. "d" is the right answer.
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