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During an AP, the membrane potential typically moves from -70mV to +20mV and back again. In a cell with 10um radius and 1uF/cm^2, how many charges need to move across the membrane (and back again) to get this 90 mV voltage fluctuation?
Construct a truth table for a three variable function that includes minterms 1,4,6,7. Construct the corresponding K map and use it to find a minimal SOP expression for F.
A 15μF capacitor is connected to a 50 V battery andbecomes fully charged. The battery is removed and a slab ofdielectric that completely fills the space between the plates isinserted. If the dielectric has a dielectric constant of 5.0,
Explain charge sharing in dynamic circuits. For a 3-input dynamic NAND gate, discuss charge sharing, and explain the design requirements under which the gate operates correctly in the presence of charge sharing.
based upon the Norton thevenin equivalentcircuits (Method of short circuit through nodal analysis) When there is a short circuit present, any resistor in parallel will not have current running through it. But what if: 1) A independant current source ..
a) The input signal to an amplifier is -20 dBm. What is the input signal power in mW. Given the input signal and noise power in parts (a) and (b), what is the input signal-to-noise ratio in dB.
A sequential circuit has two inputs (A and B) and contains one JK flip-flop that has only JK and clock inputs. If A = B the flip-flop is unchanged, otherwise the flipflop is complemented. Find the excitation equation for the JK flip-flop
A half-wave plate has a phase retardation of π. Assume that the plane is oriented so that the azimuth angle (i.e., the angle between the x-axis and the slow axis of the plate) Ψ=0. a. Find the polarization state of the transmitted beam, assuming t..
Because A-B=A+(-B), the subtraction of signed numbers can be accomplished by adding the complement. Subtract each of the following pairs of 5-bit binary numbers by adding the complement of the subtrahend to the minuend.
A three-phase substation transformer operating at 34.5kV is loaded to 24 MVA. What is the per-phase current? (assume balanced conditions)
A quick description of R5 is needed before the next calculation can be completed. R5 is called a sampling resistor. R5 is put in series with the power supply so it shares the same current as the circuit. This is the TOTAL current
An overhead line conductor is supported at water crossing from two towers, the heights of the supports being 30 and 34.2 m respectively , above the water level , with a horizontal span of 325 m.
two identical CE amplifiers are connected in cascade. The first stage is fed with a source eVsig having a resistance Rsig= 10k ohms. A load resistance Rl=10K ohms and is connected to the collector of the 2nd stage.
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