Chapter 7 - DC Parallel Circuits
The current through a short circuit can be any value because the resistance of the short circuit is always equal to____ohms
0
The total current flow and the the current flow through each branch of a circuit that has a total voltage of 15 V connected in parallel with a 3.5k ohms resistor and a 4.4k ohm resistor is ____A
0.0077
If the current in each branch in a parallel circuit is 0.3 A and 0.07 A, the total current is _____A
0.37
The total resistance in a circuit containing resistors of 2 ohms, 3 ohms, 5 ohms connected in parallel is ____ ohms
0.98
The total resistance in a circuit containing resistors of 3 ohms and 5 ohms connected in parallel is ____ ohms
1.875
If the current through four loads connected in parallel in a circuit is 0.522 A, 10.25A , 7 A, and 2.9 A, the total current is ____A
20.67
The total resistance in parallel circuit that has a total current of 5.5 mA and a total voltage of 12 V is____k ohms
22
If the voltage drop across two loads connected in parallel is 24 V, the total applied voltage in the circuit is___V
24
The voltage in a parallel circuit branch that has a resistor of 3.6 k ohms and a current of 8 mA flowing through it is ____V
28.8
If the voltage drop across two loads connected in parallel is 3 V, the total applied voltage in circuits is ____V
3
The voltage in a parallel circuit branch has a resistor of 5.5 ohms and a current of 6 A flowing through it is _____V
33
If the current through four loads connected in parallel in a circuit is 0.221 A, 16.73 A, 3.3 A, and 13.7 A the total current is ___A
33.95
If six loads are connected in parallel and the loads produce 60W, 75W, 100W, 150W, 60W, and 40W, the total circuit power is____
485
The total resistance in a circuit containing resistors of 10 ohms, 15 ohms, 35 ohms connected in parallel is ____ohms
5.1
The total resistance in a circuit containing resistors of 8 ohms and 25 ohms connected in parallel is ___ohms
6.06
The total current in a a parallel circuit that has 208 V applied to it and produces 1500 W of power is ___A
7.21
T or F An open circuit is the same as a series circuit in that any open point in the circuit causes electron flow to stop
F
T or F As loads are added to parallel, the total current decreases
F
T or F In a parallel circuit, the voltage drop across each load can be different
F
T or F Ohm's law can be used to calculate the total circuit voltage and current, but not total circuit resistance
F
T or F Power is measured in ohms
F
T or F Total current decreases if parallel loads are added and increases if parallel loads are removed
F
T or F Using parallel power distribution permits various loads to be connected to different power sources
F
T or F A short-circuited branch circuit has a resistance of zero
T
T or F As the resistance of a load decreases, the amount of power produced increases
T
T or F Conductance is improves and resistance reduced when adding resistors in parallel
T
T or F If one component in a parallel circuit has a short circuit, the total resistance of the circuit is educed to 0 ohms
T
T or F In a DC parallel circuit, electrons flow in one direction
T
T or F Parallel circuits are used when constant current flow from a voltage source is needed
T
T or F Total current in a parallel circuit is calculated by adding the current in all the branches
T
T or F When current takes a shortcut around the normal path of current flow, it is referred to as a short circuit
T
A____ resistor may be added to a parallel circuit to produce a constant flow of current
ballast
In a parallel circuit, each load is called a___ circuit
branch
Current distribution in parallel connected circuits equals the sum of the____through all branch circuits
current
Doubling the number of conductor in parallel will____the electron flow in a circuit
double
Electron flow is interrupted in a _____circuit
open
Zero current flow in a circuit indicates that there is a ____ between the power source and a load or switch in the circuit
open
A____ circuit has two or more loads and more than one path for electron flow
parallel
Total voltage multiplied by the total circuit current yields total____in a circuit
power
Zero current flow may indicate an open between the____and a load or switch in the circuit
power source
When only two resistors are in parallel, the____method reduces to the product over the sum of resistors values
reciprocal
_____is the opposition to electron flow
resistance
A_____is any circuit in which current takes a shortcut around the normal path of current flow
short circuit
The voltage drop in a parallel circuit_______across each load
stays the same
Total power of a parallel circuit is equal to the____of the power produced by each load
sum
