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3 years ago

Please help me with this question

Engineering

1 answer:

kap26 [50]3 years ago

3 0

Answer:

The current through each lamp is 0.273 Amperes

Power dissipated in each lamp is 0.082W

Explanation:

Battery v = 1.5 V

Each lamp has resistance, r = 1.1 Ohms

The 5 lamps in series will therefore have total resistance, R = 5 * 1.1 = 5.5 Ohms

The current through each lamp, I = v/R = 1.5 / 5.5 = 0.273 Amperes

Power dissipated in each lamp = I² * r = 0.273² * 1.1 = 0.082W

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Answer:

a) the average length per chip is 3 mm

b) the metal removal rate MR is 90 mm³/sec

c) number of chips formed per unit time for the portion of the operation when the wheel is engaged in the work is 4,000,000 chips/min

Explanation:

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wheel diameter = 150 mm

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Average chip length is given by

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MR = fvc

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so we substitute

MR = 0.06 × 300 × 5

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Therefore the metal removal rate MR is 90 mm³/sec

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3 years ago

Please help me with this question​

Please help me with this question