9.40_q1) which particle moves through a metal wire as electricity?
question 1 options:...
9.40_q1) which particle moves through a metal wire as electricity?
question 1 options:
protons
neutrons
electrons
atoms
(9.40_q2) electrons move
question 2 options:
thru the circuit from the negative power terminal to the positive power terminal
thru the circuit from the positive power terminal to the negative power terminal
(9.40_q3) the flow of electrons is called and is symbolized as i
question 3 options:
voltage
current
resistance
ohm
(9.40_q4) the "force" causing electricity to flow is called
question 4 options:
voltage
current
resistance
ohms
(9.40_q5) the "force" opposing the flow of electricity is called
question 5 options:
voltage
current
resistance
amps
(9.40_q6) the current is measured in units of
question 6 options:
volts
ohms
amps
henrys
(9.40_q7) the voltage is measured in units of
question 7 options:
volts
amps
ohms
henrys
(9.40_q8) the resistance to the flow of electricity is measured in units of .
question 8 options:
volts
amps
ohms
henrys
(9.40_q9) when electricity goes through an electrical component it encounters a resistance to its flow. what happens to the voltage of the electricity as it goes through the component?
question 9 options:
the voltage is increased because of the electrical resistance.
the voltage is unchanged by the electrical resistance.
the voltage is decreased by the electrical resistance.
(9.40_q10) what happens if an led is installed backward in a circuit
question 10 options:
it works, but it glows with the wrong color.
it works and glows so brightly it can hurt your eyes.
it doesn't work. the electricity can't go backwards thru an led.
(9.40_q11) in a 3 volt circuit, a 10 ฯ (ohm) resistor is replaced with a 15 ฯ resistor. what will happen to the current?
question 11 options:
the current will increase.
the current will remain unchanged.
the current will decrease.
(9.40_q12) what is the current in a 9 volt circuit with 12 ฯ resistance?
question 12 options:
9 amp
1.33 amp
0.67 amp
0.75 amp
(9.40_q13) in a 12 volt circuit, a 20 ฯ resistor is replaced with a 12 ฯ resistor. what happens to the current?
question 13 options:
the current increases.
the current is unchanged.
the current decreases.
(9.40_q14) what kind of relationship exists between resistance and current?
question 14 options:
a direct relationship
no relationship
an inverse relationship
(9.40_q15) the 9 volt battery is replaced with a 12 volt battery in a circuit with 12 ฯ resistance. what happens to the current?
question 15 options:
the current increases.
the current is unchanged
the current decreases.
(9.40_q16) what is the current in a circuit with a 6 volt battery and 1.5 ฯ resistance?
question 16 options:
0.25 amp
0.4 amp
4 amp
9 amp
(9.40_q17) a 6 volt battery is replaced with a 3 volt battery in a circuit with 3 ฯ resistance. what happens to the current?
question 17 options:
the current increases.
the current is unchanged
the current decreases
(9.40_q18) what kind of relationship exists between voltage and current?
question 18 options:
a direct relationship
no relationship
an inverse relationship
(9.40_q19) which affects which? does voltage affect current or does current affect voltage?
question 19 options:
voltage affects current
voltage and current have no relationship with each other
current affects voltage
voltage and current both affect each other.
(9.40_q20) a 12 volt battery is replaced with a 6 volt battery at the same time as the resistance of a circuit is reduced from 5 ฯ to 2.5 ฯ. what happens to the current?
question 20 options:
the current increases
the current is unchanged
the current decreases
it is impossible to tell with the information provided.
Answers: 2
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