U3.2 – Potential Difference

6

Potential Difference

1 / 10

Potential difference is...

2 / 10

Which piece of equipment can be used to measure the potential difference in a circuit?

3 / 10

How should you connect a potential difference measuring piece of equipment in a circuit?

4 / 10

Calculate the potential difference of a battery that has 230 J of energy and moves 120 C of charge.

5 / 10

Calculate the charge moved in a circuit that has a 12 V power supply and moves 1.4x106 J of energy.

6 / 10

A head torch used on a D of E expedition is rated at 3W with a 3.7 V battery, how many electrons pass through in the 5 minutes it takes for a return trip to campsite bathroom at night?

7 / 10

A microwave runs off the mains in the U.K. and has an efficiency of 98%. Calculate how much electric charge will pass through the microwave per second if it transfers 1.31kJ of energy.

8 / 10

In this diagram, what should the potential difference of the missing value be?

9 / 10

In this diagram, what should the potential difference of the cell be?

10 / 10

The unit for potential difference is Voltage, what is this in SI base units?

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