Electrical Theory NCCER 26104-14

What is the total resistance of three resistors in parallel with values of 2 ohms, 8 ohms, and 14 ohms?

a. 1.44ohms

The voltage drop across the parallel resistors shown in the figure above is_____.

a. 17.3 volts

If R3 was removed from the circuit in the figure above, how many amps of current would flow through the circuit?

a. 4

According to Kirchoff's current law, the current in a parallel circuit is equal to_______.

a. The sum of the currents in each branch

According to kirchhoff's voltage law, the total voltage drop in a circuit is equal to the ______.

a. voltage of the power source

What is the resistance of a light bulb that uses 15 watts of power when placed across a 15-volt battery?

b. 15 ohms

The total resistance of four resistors in parallel with values of 3, 10, 25, and 50 ohms is ______.

b. 2.03 ohms

What is the total resistance of the circuit in the figure above? (Figure 1)

b. 24.17 ohms

What is the total resistance of the circuit in the figure above? (Figure 2)

b. 29 ohms

A circuit in which two or more components are connected equally across the same voltage source is a_______

b. parallel circuit

The total voltage in a circuit with voltage drops of 15v, 25v, and 20v is _______.

b.60v

What is the total resistance of three resistors in parallel with values of 4 ohms, 10 ohms, and 25 ohms?

c. 2.56 ohms

How many amps of current would flow through the circuit in the figure above?

c. 4.14

There are four resistors in a circuit with an applied voltage of 120v. The voltage drops across three resistors is 15v each. What is the voltage drop across the fourth resistors?

c. 75v

In a parallel circuit, the total line current must equal______.

c. The sum of the branch currents

Two resistances of 30 and 25 ohms are connected in parallel. In series with this combination is a 40- ohm resistance, and in parallel with this total combination is a 28-ohm resistance. Given a voltage of 1.28 volts, the total current flowing through the circuit is ______.

c.70 milliamps

Given: A circuit has a voltage of 100 volts across five resistors in parallel (5, 14, 21, 25, and 100 ohms). The total current is _____.

d. 36.9

If a circuit with a source of 200 volts is connected across four parallel 50- ohms resistors, the current through each resistor is ______.

d. 4 amps

The statement that total current entering a point must equal total current leaving that point best describes_____.

d. Kirchoff's current law

Which of the following is considered a voltage rise?

d. The souce