A power bank is labelled 10,000 mAh at 3.7 V. About how much energy does it store, and could it fully recharge a laptop with a 60 Wh battery?
Une batterie externe est marquée 10 000 mAh sous 3,7 V. Environ quelle énergie stocke-t-elle, et pourrait-elle recharger entièrement un portable dont la batterie fait 60 Wh ?
Answers
AAbout 37 Wh, so no, it could not fully recharge itEnviron 37 Wh : non, elle ne pourrait pas le recharger entièrement
BAbout 10,000 Wh, so it could recharge the laptop well over a hundred timesEnviron 10 000 Wh : elle pourrait recharger le portable plus d'une centaine de fois
CAbout 60 Wh, so exactly onceEnviron 60 Wh : exactement une fois
DAbout 370 Wh, so six timesEnviron 370 Wh : six fois
The answer and explanation are in the full bank.
This question is one of 2,831 in the paid banks. Each comes with the correct answer and the reasoning behind it, not just a mark.
Unlock for 5,000 RWFMIFOTRA exam practicealigned to Practice set: Computer Hardware Issues·3 marks·Hard
More Hardware questions
- A user reports that their PC “is not working”. What should a technician do first?
- A monitor shows nothing. When forming a theory of probable cause, what should the technician check first?
- A technician confirms that a file server's failing disk is causing its errors. Replacing it will take the server offline for an hour. What is the next step in the troubleshooting method?
- After replacing a clogged CPU fan, the technician confirms the PC no longer overheats. What else belongs to this step before documenting?
- What is the final step of the standard troubleshooting method?
- A PC crashes randomly. A technician replaces the RAM, the power supply and the graphics driver all at once, and the crashes stop. What is wrong with this approach?
- A laptop with slow, grinding disk activity is going to the vendor for repair. What should be done before it leaves?
- A technician finds that a server under a vendor warranty has a faulty system board. Opening the chassis would void the warranty. What should they do?