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disa [49]
2 years ago
9

The peak magnetic field strength in a residential microwave oven is 9. 2 x 10-5 t. what is the intensity of the microwave?

Physics
1 answer:
Alexandra [31]2 years ago
7 0

The intensity of the microwave is 10.09 × 10⁵ W/m².

The unit of magnetic induction is the tesla (T). The magnetizing force, which induces the lines of force through a material, is called the field intensity, H (or H-field), and by convention has the units ampere per meter (A m−1) .

The portion of a material's magnetic field that results from an external current and is not intrinsic to the material itself is known as the magnetic field strength, also known as magnetic intensity or magnetic field intensity. It is measured in amperes per meter and represented as the vector H.

Magnetic Field, B = 9.2 × 10⁻⁵ T

I_{avg} = \frac{CB_0^2}{2\mu _0}

       = \frac{(2.998*10^8 m/s) (9.2 * 10^-^5 T)^2}{2 ( 4\pi  * 10^-^7)}

      = 10.09 × 10^5 \frac{W}{m^2}

Therefore, the intensity of the microwave is 10.09 × 10⁵ W/m².

Learn more about intensity here:

brainly.com/question/24319848

#SPJ4

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3 years ago
In a sonometer by what change in linear density of wire its velocity becomes double? Keeping tension of wire constant
faltersainse [42]

Answer:

Explanation:

In a sonometer , expression for speed of wave produced can be given as follows .

v = \sqrt{\frac{T}{m} }

v is velocity , T is tension in wire , m is density per unit length .

Here v is inversely proportional to square root of m . So if m becomes m / 4

velocity changes as follows .

velocity = \sqrt{\frac{T}{\frac{m}{4} } }

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8 0
3 years ago
If the current of a circuit is 1.5 A, and the power is 24 W. what is the resistor?
Ymorist [56]

Answer:

The resistor has a resistance of 10.667 ohms.

Explanation:

By Ohm's Law, voltage (V), in volts, is directly proportional to the current (i), in amperes, and by definition of power (\dot W), in watts, we have the following formula:

\dot W = i^{2}\cdot R (1)

Where R is the resistance, in ohms.

If we know that \dot W = 24\,W and i = 1.5\,A, then the resistance of the resistor is:

R = \frac{\dot W}{i^{2}}

R = 10.667\,\Omega

The resistor has a resistance of 10.667 ohms.

3 0
3 years ago
Does the mass of an object change if the object is moved to another planet?
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5 0
3 years ago
Toe boards shall be capable of withstanding, without failure, a force of at least _______ applied in any downward or outward dir
miv72 [106K]

Answer:

50 pounds

Explanation:

A toe board is a 2 inch x 4 inch safety wooden board used when adding roofing to a house. According to my research on the limits for toe boards, I can say that a toe board can withstand a force of at least 50 pounds applied in any downward or outward direction at any point without failure. This has been tested extensively by professionals before sale.

I hope this answered your question. If you have any more questions feel free to ask away at Brainly.

7 0
3 years ago
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