NCCER ELECTRICAL MODULE 3 (INTRO TO ELECTRICAL
CIRCUITS) EXAM | QUESTIONS AND ANSWERS | VERIFIED ANSWERS
(100% CORRECT) | LATEST EXAM UPDATE
a circuit has a source voltage of 50v and a current of 10A, what is the power in
watts? - CORRECT ANSWER - 500w
voltage is defined as the? - CORRECT ANSWER - driving force that makes
current flow in a circuit
if a circuit has 12 amps of current and the resistance is 20 ohms, the applied
voltage is? - CORRECT ANSWER - 240 volts
if two 10 ohm resistors are connected in series, what is the total resistance of the
resistors? - CORRECT ANSWER - 20 ohms
to make sure the voltage is turned off before touching any terminals, use a? -
CORRECT ANSWER - voltage tester
how many amps are there in the current of a circuit if the voltage source is 140v
and the resistance is 2 ohms - CORRECT ANSWER - 70 amps
materials with electrical characteristics that fall between those of insulators and
conductors are considered? - CORRECT ANSWER - semiconductors
what is the applied voltage if the current in a circuit is 60 amps and the resistance
is 10 ohms - CORRECT ANSWER - 600 volts
, which of the following is used to step voltage down to lower levels before it
reaches a home or office? - CORRECT ANSWER - transformers
a 5 ohm and 20 ohm resistor are connected in parallel, what is the total resistance
of these two resistors? - CORRECT ANSWER - 4 ohms
if the resistors of a circuit is 20 ohms and the current is 10 amps, the power in
watts is? - CORRECT ANSWER - 200 watts
if a circuit has 48 amps of current and applied voltage of 240 volts, the resistance
is? - CORRECT ANSWER - 5 ohms
what would you measure resistance with - CORRECT ANSWER - ohm meter
which of the following substances is considered a good semiconductor. -
CORRECT ANSWER - silicon
in a parallel circuit, each load is connected __ to the voltage drop which results in
the voltage drop being _ - CORRECT ANSWER - - directly
- the same within all loads
what do electrons repel - CORRECT ANSWER - other electrons
1. electric charge is measured in
2. voltage ?
CIRCUITS) EXAM | QUESTIONS AND ANSWERS | VERIFIED ANSWERS
(100% CORRECT) | LATEST EXAM UPDATE
a circuit has a source voltage of 50v and a current of 10A, what is the power in
watts? - CORRECT ANSWER - 500w
voltage is defined as the? - CORRECT ANSWER - driving force that makes
current flow in a circuit
if a circuit has 12 amps of current and the resistance is 20 ohms, the applied
voltage is? - CORRECT ANSWER - 240 volts
if two 10 ohm resistors are connected in series, what is the total resistance of the
resistors? - CORRECT ANSWER - 20 ohms
to make sure the voltage is turned off before touching any terminals, use a? -
CORRECT ANSWER - voltage tester
how many amps are there in the current of a circuit if the voltage source is 140v
and the resistance is 2 ohms - CORRECT ANSWER - 70 amps
materials with electrical characteristics that fall between those of insulators and
conductors are considered? - CORRECT ANSWER - semiconductors
what is the applied voltage if the current in a circuit is 60 amps and the resistance
is 10 ohms - CORRECT ANSWER - 600 volts
, which of the following is used to step voltage down to lower levels before it
reaches a home or office? - CORRECT ANSWER - transformers
a 5 ohm and 20 ohm resistor are connected in parallel, what is the total resistance
of these two resistors? - CORRECT ANSWER - 4 ohms
if the resistors of a circuit is 20 ohms and the current is 10 amps, the power in
watts is? - CORRECT ANSWER - 200 watts
if a circuit has 48 amps of current and applied voltage of 240 volts, the resistance
is? - CORRECT ANSWER - 5 ohms
what would you measure resistance with - CORRECT ANSWER - ohm meter
which of the following substances is considered a good semiconductor. -
CORRECT ANSWER - silicon
in a parallel circuit, each load is connected __ to the voltage drop which results in
the voltage drop being _ - CORRECT ANSWER - - directly
- the same within all loads
what do electrons repel - CORRECT ANSWER - other electrons
1. electric charge is measured in
2. voltage ?
