NCCER Electrical module 3 (intro to
electrical circuits) Questions & Answers
a circuit has a source voltage of 50v and a current of 10A, what is the power in watts? Correct
Ans-500w
voltage is defined as the? Correct Ans-driving force that makes current flow in a circuit
if a curcuit has 12 amps of current and the resistance is 20 ohms, the applied voltage is?
Correct Ans-240 volts
if two 10 ohm resistors are connected in series, what is the total resistance of the resistors?
Correct Ans-20 ohms
to make sure the voltage is turned off before touching any terminals, use a? Correct Ans-
voltage tester
how many amos are there in the current of a circuit if the voltage source is 140v and the
resistance is 2 omhs Correct Ans-70
materials with electrical characteristics that fall between those of insulators and conductors are
considered? Correct Ans-semiconductors
electrical circuits) Questions & Answers
a circuit has a source voltage of 50v and a current of 10A, what is the power in watts? Correct
Ans-500w
voltage is defined as the? Correct Ans-driving force that makes current flow in a circuit
if a curcuit has 12 amps of current and the resistance is 20 ohms, the applied voltage is?
Correct Ans-240 volts
if two 10 ohm resistors are connected in series, what is the total resistance of the resistors?
Correct Ans-20 ohms
to make sure the voltage is turned off before touching any terminals, use a? Correct Ans-
voltage tester
how many amos are there in the current of a circuit if the voltage source is 140v and the
resistance is 2 omhs Correct Ans-70
materials with electrical characteristics that fall between those of insulators and conductors are
considered? Correct Ans-semiconductors
