Questions

Q:

Rectifiers convert _____.

A) high voltage to low voltage B) low voltage to high voltage
C) AC to DC D) DC to AC
 
Answer & Explanation Answer: C) AC to DC

Explanation:
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Q:

Sunspots appear dark because they are

A) hotter than the rest of the Sun's surface. B) more magnetic than the rest of the Sun's surface. 
C) cooler than the rest of the Sun's surface. D) None of the above
 
Answer & Explanation Answer: C) cooler than the rest of the Sun's surface.

Explanation:

Sunspots are a magnetic phenomenon on the Sun.

The reason a sunspot appears dark is that they are cooler than the rest of the Sun's surface and also the gas inside the spot where the magnetic field is strongest is only emitting about 1/4 as much light as from the rest of the solar surface. 

 

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Q:

Find the kinetic energy (in J) possessed by a body of mass 10 kg moving with a velocity of 5 m/s.

A) 25 B) 125
C) 62.5 D) 50
 
Answer & Explanation Answer: B) 125

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Q:

In Microsoft Excel, the _________() function is used to count the number of cells that contain numbers within the list of arguments.

A) COUNTIF B) COUNT
C) SUMCOUNT D) COUNTSUM
 
Answer & Explanation Answer: B) COUNT

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Q:

An object is composed of

A) Methods B) Attributes
C) Properties D) All of the above
 
Answer & Explanation Answer: D) All of the above

Explanation:
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Q:

Three runners A,B and C run a race, with runner A finishing 12 meters ahead of runner B and 18 meters ahead of runner C, while runner B finishes 8 meters ahead of runner C. Each runner travels the entire distance at a constant speed. The length of the race is

A) 36 Metres B) 48 Metres
C) 60 Metres D) 72 Metres
 
Answer & Explanation Answer: B) 48 Metres

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Q:

Net working capital is defined as

Answer

Net working capital is defined as the aggregate of the current liabilities and current assets i.e, it measures the company's ability to pay off its current liabilities with in the current assets.

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Q:

For a good that is a luxury demand

A) has unit elasticity B) tends to be inelastic
C) tends to be elastic D) cannot be represented
 
Answer & Explanation Answer: C) tends to be elastic

Explanation:

For a good that is a luxury demand tends to be elastic.

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