Deck 16: Basic Resistive Electrical Circuits

Question 1

A(n) ____________________ circuit consists of components that are connected in both series and parallel.

Answer 1

combination

Question 2

A circuit must contain a minimum of what three elements?

Answer 2

A circuit must contain a power source, a complete path for current flow, and a load.

Question 3

What is the name given to a circuit that no longer provides a path for current flow?

A) short
C) closed
B) full
D) open

Answer 3

D

Question 4

A parallel circuit consists of a 10 $\Omega$ resistor, a 20 $\Omega$ resistor, and a 30 $\Omega$ resistor. The circuit is connected to a 120 V source. If the voltage across the 30 $\Omega$ resistor is 120 V, how much voltage will be measured across the 10 $\Omega$ resistor?

A) There is not enough information given to solve this problem.
B) 0 V
C) 80 V
D) 120 V

Question 5

If an open were to occur in a branch of a parallel circuit, the total circuit resistance would ____.

A) increase
B) decrease
C) remain the same
D) not be able to be determined with the given information

Question 6

A parallel circuit only has one path for current flow.

Question 7

If the voltage source of a series circuit decreased by half and the circuit resistance remained the same, the total current would ____.

A) decrease to zero
C) double
B) decrease by half
D) remain the same

Question 8

What is the total resistance of three resistors--3 k $\Omega$ , 4 k $\Omega$ , and 12 k $\Omega$ --connected in parallel?

A) 1.5 k $\Omega$
B) 2 k $\Omega$
C) 5 k $\Omega$
D) 6.3 k $\Omega$

Question 9

The largest branch resistance in a parallel circuit will always have the ____.

A) most voltage
C) most current
B) least voltage
D) least current

Question 10

Three resistors--1 k $\Omega$ , 2 k $\Omega$ , and 7 k $\Omega$ --are connected in series. What is the total circuit resistance?

A) 0.55 $\Omega$
B) 1.83 $\Omega$
C) 4 k $\Omega$
D) 10 k $\Omega$

Question 11

In a(n) ____________________ circuit, the total circuit resistance is smaller than the smallest branch resistance.

Question 12

When comparing a series circuit and a parallel circuit, a series circuit is said to ____.

A) have three or more paths for current flow
B) have only one path for current flow
C) have more than one path for current flow
D) always have two paths for current flow

Question 13

A power device is used to switch the current flow on or off.

Question 14

A series circuit consists of a 10 $\Omega$ resistor, a 20 $\Omega$ resistor, and a 30 $\Omega$ resistor. The circuit is connected to a 120 V source. If the voltage across the 10 $\Omega$ resistor measures 20 V and the voltage across the 30 $\Omega$ resistor measures 60 V, how much voltage should be measured across the 20 $\Omega$ resistor?

A) There is not enough information given to solve this problem.
B) 120 V
C) 40 V
D) 10 V