Question 1

Two identical lamps are connected in series, and draw a current of 5 A from the supply. The current through each lamp is&#10;A) 5 A&#10;B) 2.5 A&#10;C) 2.00A

Accepted Answer

In a series circuit, the current is the same through all components. Therefore, each lamp has a current of 5 A flowing through it.

Question 2

The current passing through a circuit comprising components connected in series&#10;A) is the same everywhere in the circuit&#10;B) is largest through the lamp closest to the supply&#10;C) splits at each lamp&#10;D) gets less the further it goes around the circuit

Accepted Answer

In a series circuit, the current passing through each component is the same as the current passing through every other component in the circuit. This is because there is only one path for the current to flow and it cannot be split or diverted. Therefore, option B and C are incorrect, and option D is also incorrect as the current does not reduce as it goes around the circuit.

Question 3

Which of the following statements is correct for a series circuit?&#10;A) the voltage across each component is the same as the supply voltage&#10;B) the sum of the voltages across each component equals the supply voltage&#10;C) the voltage is the same wherever it is measured&#10;D) the largest voltage appears across the component nearest the supply

Accepted Answer

In a series circuit, the total voltage across all components equals the supply voltage, as the voltage drops across each component add up to the total supplied voltage.

Question 4

The current supplying a circuit comprising lamps in parallel&#10;A) is the same in each branch&#10;B) is the sum of the currents in each branch&#10;C) passes through each branch

Accepted Answer

The answer of The current supplying a circuit comprising lamps...

Question 5

A parallel circuit consists of a number of __________ connected across the same supply&#10;A) individual circuits&#10;B) lamps&#10;C) branches&#10;D) junctions

Accepted Answer

In a parallel circuit, components such as lamps or individual circuits are connected in separate branches, allowing each component to receive the same voltage but varying amounts of current. Junctions are simply points where wires intersect and do not necessarily indicate the presence of a parallel circuit.

Question 6

Kirchhoff's Voltage Law applies&#10;A) only to series circuits&#10;B) only to parallel circuits&#10;C) only to series-parallel circuits&#10;D) all circuits

Accepted Answer

Kirchhoff's Voltage Law applies to all circuits, regardless of their configuration. It states that the sum of the voltages around any closed loop in a circuit must equal zero.

Question 7

Kirchhoff's Current Law applies&#10;A) only to series circuits&#10;B) only to parallel circuits&#10;C) only to series-parallel circuits&#10;D) all circuits

Accepted Answer

Kirchhoff's Current Law applies to all circuits, whether they are in series, parallel, or a combination of both. It states that the sum of currents flowing into a node (or a junction) is equal to the sum of currents flowing out of that node.

Deck 8: Series, Parallel and Series-Parallel Circuits