Question 1

In a parallel circuit, the current is the same at any point in the circuit.

Accepted Answer

In a parallel circuit, the voltage across each branch is the same, but the current can vary in each branch depending on the resistance of the branch.

Question 2

A rule for ____ circuits states that the total current in a ____ circuit is the sum of the currents through the individual paths.&#10;A) series&#10;B) combination&#10;C) parallel&#10;D) reverse

Accepted Answer

The rule mentioned describes the behavior of parallel circuits, where the current has multiple paths to flow and the total current is the sum of the individual branch currents.

Question 3

A method of finding the total resistance in a parallel circuit is to find the ____ of each individual resistor.&#10;A) reciprocal&#10;B) complement&#10;C) square&#10;D) supplement

Accepted Answer

In a parallel circuit, the total resistance is found by taking the reciprocal of each individual resistor and adding them together. This is known as the reciprocal formula for parallel circuits.

Question 4

Some strings of Christmas tree lights are wired in series.

Accepted Answer

When lights are wired in series, the current flows through each light bulb in turn, and if one light goes out, the entire circuit will be broken and none of the lights will work.

Question 5

A rule of ____ circuits states that the total resistance is equal to the sum of the individual resistors.&#10;A) series&#10;B) parallel&#10;C) individual&#10;D) combination

Accepted Answer

The rule described is specifically a rule for series circuits. In a series circuit, the components are connected end to end, and the current flows through each component in order. The resistance of each component adds up to the total resistance of the circuit.

Question 6

Because a(n) ____ circuit has only one path for current flow, if any point in the circuit should become open, current flow throughout the entire circuit will stop.&#10;A) parallel&#10;B) combination&#10;C) series&#10;D) alternating

Accepted Answer

In a series circuit, components are connected end-to-end, forming a single pathway for electrons to flow. Therefore, if any part of the circuit becomes open (i.e. a break in the connection), the current cannot flow through the pathway and the circuit will be open, causing current flow throughout the entire circuit to stop. In a parallel circuit, there are multiple pathways for current flow, so if one pathway becomes open, current can still flow through the other pathways. The concept of a combination circuit is a bit ambiguous, as it could refer to a circuit that has both series and parallel components. Alternating circuits involve current that periodically reverses direction, but this does not relate to the ability for current flow to stop if a part of the circuit becomes open.

Question 7

The current flow in a(n) ____ circuit must be the same at any point in the circuit.&#10;A) parallel&#10;B) combination&#10;C) alternating&#10;D) series

Accepted Answer

In a series circuit, the current flows through each component in the same path, therefore the current at any point in the circuit must be the same. In a parallel circuit, the current can split and flow through multiple paths, so the current at any point in the circuit may not be the same. A combination circuit can have both series and parallel components, so the current may vary at different points. Alternating circuits use alternating current, which periodically switches direction, so the current is not constant and may not be the same at any point in the circuit.

Question 8

The simplest of electrical circuits is the parallel circuit.

Accepted Answer

The simplest of electrical circuits is actually the series circuit.

Question 9

Most circuits are connected in parallel.

Accepted Answer

Most circuits, especially in residential and commercial electrical systems, are connected in parallel to ensure that each component or device operates independently and receives the same voltage, allowing for consistent operation and easier control over individual elements.

Question 10

Parallel circuits have more than one path for current flow.

Accepted Answer

In a parallel circuit, there are multiple branches or paths for current to flow, allowing for more than one possible route from the source to the load.

Deck 4: Electrical Circuits