# Lesson Worksheet: Cells in Parallel Science

In this worksheet, we will practice calculating the total e.m.f. of a set of cells that are connected in parallel.

Q1:

The diagram shows three cells connected in parallel. What is the total emf provided by the cells? Q2:

Four identical cells are connected in parallel. Each cell provides an emf of 3 V. What is the total emf provided by the cells if they are all aligned in the same direction?

Q3:

Nine identical cells are connected in parallel and are all aligned in the same direction. The total emf provided by the cells is 18 V. What is the emf provided by one cell?

Q4:

The diagram shows three cells connected in parallel. What is the total emf provided by the cells? Q5:

Which of the following diagrams shows three cells connected in parallel?

• A • B Q6:

The diagram shows a circuit consisting of three cells and a resistor. Complete the following sentence: The three cells are connected in .

• Aseries
• Bparallel

Q7:

Which of the following is the correct circuit symbol for a cell?

• A • B • C • D • E Q8:

The diagram shows three identical cells connected in parallel. The total emf provided by the cells is 6 V. What is the emf provided by each cell? Q9:

The following circuit consists of a bulb and three cells connected in parallel. What is the total emf provided by the cells to the bulb? Q10:

A circuit is constructed from two cells, connected in parallel, and a resistor. This is shown in the diagram below. After a period of time, the wires in a certain part of the circuit get too hot and begin to melt. Which of the following statements is the most likely explanation for this?

• AThe emf of each of the cells is too high.
• BThe cells are aligned in such a way that the current between them is too high.
• CBecause the cells are connected in parallel, the current in the resistor is too high.