Electrical Properties

Question 1

Passive vs. Active Spread

Answer 1

Local potentials within a few mm vs. action potentials that can propagate full length

Question 2

Capacitance =

Answer 2

K x A/d

Question 3

Amount of Charge Stored on a Capacitor, Q =

Answer 3

VxC

Question 4

Time Constant, tau = (eq for round cell and determination)

Answer 4

= RC, the time for voltage to rise to 63% of steady state value when current on or time to decay to 27% of value when current turned off

Question 5

Lambda (def and equals)

Answer 5

Length or space constant, = sqrt(Resistance of membrane/resistance of axoplasm)