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The energy used by an appliance which operates at 240 volts at 15 amp for 4 hr. is A. 0.92 kwhr. B. 3.45 kwhr. C. 14.4 kwhr. D. 60.0 kwhr
Answer:
C. 14.4 kwhr.
Explanation:
To calculate the energy used by appliance first calculate the power. The formulae for calculating power(P) is [tex] P= I \times V[/tex], where V stands for voltage and I stands for current.
In the given problem, V = 240 volts and I = 15 amp. Therefore,
[tex]P=240 \times 15 =3600\ watt(w) = 3.6\ kw[/tex]
Now, formulae for calculating energy used i.e. work(W) is [tex]W = P\times t[/tex], where t is the time.
In the given question time is 4 hr. Therefore energy used will be,
Energy used (W) = [tex]3.6\times4 =14.4\ kwhr[/tex].
Which activity is a case of identity theft?
A. gaining unauthorized access to a computer system
B. sending unsolicited bulk email
C. stealing someone else’s personal data
D. using someone else’s original content without permission
Answer:
C, stealing someone else's personal data.
The correct answer is C. Stealing someone else’s personal data
Explanation:
Identity theft including the one that occurs through technology is a crime that involves stealing personal data or information, this includes passwords, identification numbers, credit card information, etc. The purpose of this is to obtain advantages, money or products by pretending to be another person. This means the theft steals the identity represented by the name and personal information of the victim. Nowadays, this occurs through technology such as programs to obtain passwords, e-mails that ask users to provide personal information, among others. According to this, the activity that is a case of identity theft is "Stealing someone else’s personal data".