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Worksheets9 Current and Resistance
Total questions: 16
Worksheet time: 8mins
Name
Class
Date
1.
SI unit for current; 1A=1C/s
a)
ampere (amp)
b)
nonohmic
c)
ohm
d)
ohmic
2.
complete path that an electrical current travels along
a)
resistance
b)
circuit
c)
resistivity
d)
schematic
3.
current that flows through a circuit from the positive terminal of a battery through the circuit to the negative terminal of the battery
a)
drift acceleration
b)
drift velocity
c)
conventional current
d)
current density
4.
flow of charge through a cross-sectional area divided by the area
a)
drift acceleration
b)
drift velocity
c)
conventional current
d)
current density
5.
nonohmic circuit device that allows current flow in only one direction
a)
diode
b)
nonohmic
c)
circuit
d)
ohmic
6.
velocity of a charge as it moves nearly randomly through a conductor, experiencing multiple collisions, averaged over a length of a conductor, whose magnitude is the length of conductor traveled divided by the time it takes for the charges to travel the length
a)
drift acceleration
b)
drift velocity
c)
conventional current
d)
current density
7.
measure of a material’s ability to conduct or transmit electricity
a)
electrical power
b)
electrical drift
c)
electrical conductivity
d)
electrical current
8.
rate at which charge flows, I=dQdt
a)
electrical power
b)
electrical drift
c)
electrical conductivity
d)
electrical current
9.
time rate of change of energy in an electric circuit
a)
electrical power
b)
electrical drift
c)
electrical conductivity
d)
electrical current
10.
type of a material for which Ohm’s law is not valid
a)
ampere (amp)
b)
nonohmic
c)
ohm
d)
ohmic
11.
(Ω) unit of electrical resistance, 1Ω=1V/A
a)
ampere (amp)
b)
nonohmic
c)
ohm
d)
ohmic
12.
empirical relation stating that the current I is proportional to the potential difference V; it is often written as V=IR , where R is the resistance
a)
ohmic
b)
nonohmic
c)
ohm
d)
Ohm’s law
13.
type of a material for which Ohm’s law is valid, that is, the voltage drop across the device is equal to the current times the resistance
a)
ohmic
b)
ampere (amp)
c)
nonohmic
d)
ohm
14.
electric property that impedes current; for ohmic materials, it is the ratio of voltage to current, R=V/I
a)
circuit
b)
resistance
c)
resistivity
d)
schematic
15.
intrinsic property of a material, independent of its shape or size, directly proportional to the resistance, denoted by ρ
a)
circuit
b)
resistance
c)
resistivity
d)
schematic
16.
graphical representation of a circuit using standardized symbols for components and solid lines for the wire connecting the components
a)
resistance
b)
circuit
c)
resistivity
d)
schematic
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