1 markAlternating Currents
CAPE Physics Unit 2 · 2005 · Paper 1 · Question 4(b)(ii)
Figure V shows an op-amp comparator with supply voltages +12 V and -12 V, and open-loop gain of 2 x 10^5.
A signal with voltage V_i given by V_i = 0.2 sin(100 pi t) is applied to the comparator in (b)(i). Calculate the frequency of the signal.
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