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1 year ago

Is Ampère's law valid for all closed paths surrounding a conductor? Why is it not useful for calculating →B for all such paths?

1 answer:

8 0

Although not always practical, Ampere's law is true for all closed channels around a conductor. The integral can be calculated along many different paths, although it is difficult to do so. Think about a path that is circular but not coaxial with a long, straight wire that carries current. If the current in a conductor has enough symmetry to allow the line integral to be reduced to the size of B times an integral, Ampere's law can be used to calculate B.

<h3>What applications does Ampere's Law have?</h3>

Ampere's Law is applied to,

Find the magnetic induction caused by a long wire carrying current.
Analyze the magnetic field a toroid has.
Find the magnetic field produced by a long conducting cylinder that carries current.
Ascertain the conductor's magnetic field.

To learn more about Ampere's Law, visit:

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<h3>What is resistance?</h3>

Resistance can be defined as the opposition to the flow of electric current in an electric circuit. The S.I unit of resistance is Ohms (Ω).

To calculate the resistance of the heater, we use the formula below.

<h3>Formula:</h3>

R = V²/P............. Equation 1

Where:

R = Resistance of the heater
P = Power of the heater
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From the question,

Given:

V = 480 V
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Substitute these values into equation 1

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Hence, the resistance expected of the heater is 50.1 ohms.

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Answer:

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