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Degger [83]
3 years ago
6

An electric device, which heats water by immersing a resistance wire in the water, generates 50 cal of heat per second when an e

lectric potential difference of 12 V is placed across its leads. What is the resistance of the heater wire? (Note: 1 cal = 4.186 J)
Physics
1 answer:
Oksi-84 [34.3K]3 years ago
3 0

Answer:

0.69 ohm

Explanation:

Heat generated per second, H = 50 cal/s

Potential difference, V = 12 V

Let R is the resistance of coil.

The formula for the heat is given by

H = \frac{V^{2}}{R}t

50\times 4.186 = \frac{12^{2}}{R}\times 1

R = 0.69 ohm

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Answer:

F \approx 19.5 N

Explanation:

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Generally the equation for Resultant pressure P_r is give as is mathematically given by

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4 0
3 years ago
An airplane travels 4000m in 16 seconds on a heading of 35 whats is its velocity
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In the question, you just gave a complete and detailed
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Explanation:

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