Nursing Elites

1. Which conclusion can be drawn from Ohm’s law?

• A. Voltage and current are inversely proportional when resistance is constant.
• B. The ratio of the potential difference between the ends of a conductor to current is a constant, R.
• C. Voltage is the amount of charge that passes through a point per second.
• D. Power (P) can be calculated by multiplying current (I) by voltage (V).

Correct answer: B

Rationale: Ohm's law states that the ratio of the potential difference (voltage) between the ends of a conductor to the current flowing through it is a constant. Mathematically, this is represented as V = I x R, where V is voltage, I is current, and R is the constant resistance. Therefore, the correct conclusion that can be drawn from Ohm's law is that the ratio of the potential difference between the ends of a conductor to current is a constant, denoted as R. This relationship is fundamental to understanding the behavior of electrical circuits and the effect of resistance on voltage and current. Choice A is incorrect because Ohm's law actually states that voltage and current are directly proportional when resistance is constant. Choice C is incorrect because voltage is not the amount of charge that passes through a point per second; rather, it is the electric potential energy per unit charge. Choice D is incorrect because although power (P) can be calculated by multiplying current (I) by voltage (V), this is not a conclusion directly drawn from Ohm's law.

2. It seems like the sun _____ on Saturday.

• A. never shines
• B. never shone
• C. rarely shines
• D. sometimes shines

Correct answer: B

Rationale: The correct answer is 'never shone' as the sentence is discussing a past event (Saturday). 'Never shone' is the correct past tense form to describe the sun not shining on a specific day in the past. Choices A, C, and D are incorrect because they do not provide the appropriate past tense form needed in this context. 'Never shines' is present tense, 'rarely shines' implies occasional shining, and 'sometimes shines' suggests occasional shining as well, none of which accurately convey the past event of the sun not shining on Saturday.

3. Which phrase best completes the sentence: 'Despite _____, he managed to complete the race.'

• A. his injury
• B. his condition
• C. his pain
• D. his fatigue

Correct answer: A

Rationale: The correct answer is 'A: his injury.' In the context of completing a race, an injury would be a significant obstacle to overcome. While choices B, C, and D could also pose challenges, an injury is the most severe hindrance that would make completing a race particularly difficult. His condition, pain, or fatigue may affect performance, but they are not as directly impactful as an injury in this scenario.

4. The patients are under 'quarantine'. What does this mean?

• A. Confinement away from the general population
• B. A specialist’s care
• C. Experimental drug therapy
• D. Imprisonment in a rehabilitation unit

Correct answer: A

Rationale: The correct answer is A: 'Confinement away from the general population.' Quarantine refers to keeping someone isolated from the general population to prevent the spread of disease. Choice B, 'A specialist’s care,' is incorrect as it refers to medical treatment by a specialist, not isolation. Choice C, 'Experimental drug therapy,' is incorrect as it involves the administration of new drugs for research purposes, not isolation. Choice D, 'Imprisonment in a rehabilitation unit,' is incorrect as it implies being detained in a rehabilitation facility, not isolation for health reasons.

5. How many liters are in 5000 milliliters?

• A. 5 liters
• B. 4 liters
• C. 6 liters
• D. 5.5 liters

Correct answer: A

Rationale: To convert milliliters to liters, you divide by 1000 since 1000 milliliters make up 1 liter. In this case, 5000 milliliters divided by 1000 milliliters per liter equals 5 liters (5000 mL ÷ 1000 mL/L = 5 L). Therefore, the correct answer is A: 5 liters. Choice B, 4 liters, is incorrect because 5000 milliliters is equivalent to 5 liters, not 4. Choice C, 6 liters, is incorrect as it is not the accurate conversion from milliliters to liters in this case. Choice D, 5.5 liters, is incorrect as it does not reflect the correct conversion of 5000 milliliters to liters, which is 5 liters.

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