A biomedical sensor circuit must reach 63 % of its final charge in 2.0
PHYSICS · Single correct · A Level · Physics · Fields and their consequences · Fields and their consequences
Problem
A biomedical sensor circuit must reach 63\% of its final charge in 2.0\,\text{s}. If the available resistor is 220\,k\Omega, what capacitance should be selected to meet this requirement?
(a) 2.3μF
(b) 440μF
(c) 9.0μF
(d) 13μF