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Chapter: 17.2 / Q: 69
Why should the use of staff of child-bearing age to nurse patients with implanted radioactive sources be avoided?
Chapter: 18 / Q: 1
Which is the correct statement about the behaviour of electrical charges?
Chapter: 18 / Q: 2
In an Australian domestic AC electrical circuit, what is the potential difference (voltage) in the three wires?
Chapter: 18 / Q: 3
When can electrical microshock occur? When:
Chapter: 18 / Q: 4
How much current (I) will fl ow through someone who touches a 240 V active wire with one hand and the ground with the other, given that their hand to hand resistance (R) is 2400 ohms? (use the equation V = I × R)
Chapter: 18 / Q: 5
The effects on a human that result from an electric shock depend upon all of the following EXCEPT one. Which one?
Chapter: 18 / Q: 6
Inside a typical household electrical appliance that has a three prong plug, what is the earth wire connected to?
Chapter: 18 / Q: 7
How much current (I) will fl ow through someone who touches a 240 V active wire with one hand and ground with the other, given that their hand to hand resistance (R) is 24,000 ohms? (V = I × R)
Chapter: 18 / Q: 8
Choose the alternative which correctly completes the following sentence: ‘There are two types of electric charge called…
Chapter: 18 / Q: 9
If an ion has a positive charge then what do we know about it? That it
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