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3 years ago

A car battery can deliver up to 75 amps of current at a voltage of 12 volts. How much power is this?

Physics

2 answers:

Alex_Xolod [135]3 years ago

4 0

A.900 watts That would be your correct answer

Bess [88]3 years ago

3 0

Answer : Power = 900 watts

Explanation :

It is given that,

A car battery can deliver up to 75 amps of current at a voltage of 12 volts. The power delivered is given by the following relation :

$P=VI$

$P=I^2R$

$P=\dfrac{V^2}{R}$

In this case, we use relation (1)

$P=12\ V\times 75\ A$

$P=900\ W$

The correct option is (A) " 900 Watts ".

Hence, this is the required solution.

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The restoring force applied to the spring for a given length of deflection is known as the spring constant. It is often referred to as the amount of force needed to extend or compress a spring one unit of length.

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2 years ago

What type of Circuit do they use in a home? WHY ? (Simple circuit / Parallel circuit / Series circuit) helpp

Vikentia [17]

Answer:

Parallel

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3 years ago

Assuming the average rate of heat energy flowing outwards from earth to be 0.063 W/m2 calculate the energy available at a hot sp

MaRussiya [10]

Answer:

"13.48 Kwhr" is the right solution.

Explanation:

The given values are:

Average rate of heat energy,

= 0.063 W/m²

Diameter,

= 8m

Efficiency of conversion,

= 50%

Now,

The area of hotspot will be:

⇒ $A=\frac{\pi}{4} d^2$

On substituting the values, we get

⇒ $=\frac{3.14}{4} (8)^2$

⇒ $=0.785\times 64$

⇒ $=50.24 \ m^2$

Total heat generation rate will be:

⇒ $Q=q\times A$

$=0.063\times 50.24$

$=3.16 \ W$

hence,

The electricity generation capacity will be:

⇒ $P=\eta Q t$

On substituting the values, we get

⇒ $=0.5\times 3.16\times 8760$

⇒ $=13840.8 \ Whr$

On converting into Kwhr, we get

⇒ $=13.84 \ Kwhr$

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3 years ago

What is mean by the net displacement in transverse wave

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4 years ago

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Answer:

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