# Shared Flashcard Set

## Details

Electric Circuits
Physics 265 Electric Circuits Exam 4
17
Physics
05/13/2015

Term
 What is the expression for the voltage across a capacitor for a charging RC circuit?
Definition
 V(C)=(Epsilon)(1-exp{-t/RC})
Term
 How many Coulombs is 1.00 A*min (Amp per minute)?
Definition
 60 Coulombs
Term
 What are the units of the conductivity?
Definition
 1/(Ohm)meter
Term
 All other things being equal, current will be larger in a wire that has a larger value of __________.
Definition
 conductivity.
Term
 The potential difference across resistors in parallel is ___________.
Definition
 the same.
Term
 As more resistors are added in series with a power supply, the current from the power supply will __________.
Definition
 decrease.
Term
 A dielectric ____________ the capacitance of a capacitor.
Definition
 increases.
Term
 True or False: The units of N/C (Newtons per Coulomb) are equivalent to V/m (Volts per meter).
Definition
 True.
Term
 True or False: The electrons move in the opposite direction as the electric current.
Definition
 True
Term
 True or False: The terminal voltage from a battery is always equal to or less than the Emf of the battery.
Definition
 True.
Term
 What is the expression for the charge across a discharging RC circuit?
Definition
 Q = Q(0)exp{-t/RC}
Term
 What are the units of resistivity?
Definition
 (Ohm)meter
Term
 The current through resistors in series is ________.
Definition
 the same.
Term
 As more resistors are added in parallel with a power supply the current from the power supply will ___________.
Definition
 increase.
Term
 When a charged particle moves parallel to the direction for a uniform magnetic field, the particle traveles in a ___________.
Definition
 straight line.
Term
 True or False: The conductivity of a material will be lower, if the material's temperature is lower.
Definition
 False.
Term
 True or False: The North pole of the Earth is actually the South pole of a bar magnet.
Definition
 True.
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