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Citrus2011 [14]
3 years ago
7

Please answer the following question

Physics
2 answers:
Elden [556K]3 years ago
6 0

Answer:

Where is the resistance value?

Question is incomplete

Liula [17]3 years ago
6 0
Can you show the rest of the problems?
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Cobaltâ’60 is a radioactive isotope used to treat cancers of the brain and other tissues. A gamma ray emitted by an atom of this
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Energy of gamma rays is given by equation

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here we know that

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now energy is given as

E = 4.70 MeV = 4.70 \times 10^6 \times 1.6 \times 10^{-19}

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now by above equation

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7.52 \times 10^{-13} = 6.6 \times 10^{-34} \nu

\nu = 1.14 \times 10^{21} Hz

now for wavelength we can say

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3 years ago
_______ are pictures of relationships.
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Which type of resistor is commonly used in automotive circuits? a. Fixed value b. Stepped c. Variable d. All of the choices
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Answer:d-All of the above

Explanation:

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Fixed value:A fixed value electrical resistance is one whose value is resistance value is fixed and does not change in circuit.

Stepped resistance:Stepped resistor also called as tapped resistors provide two or more set resistor values. In a circuit, the various resistances are attached to different terminals. When the switch is shifted, different resistance values are put in the circuit.

Variable resistance:The variable resistor gives more control over the current flow by increasing the resistance. When the resistance of the variable resistor increases, the amount of current allowed to flow in the circuit decreases.              

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