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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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$\delta =\frac{5wl^4}{384EI}+\frac{Pl^3}{48EI}=\frac{5\times 275\times 10^3\times 5^4}{384\times 1.5\times 10^7}+\frac{10\times 10^3\times 5^3}{48\times 1.5\times 10^7}\\\\\delta =0.149 + 1.74\times 10^{-3}=0.151m$

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