Using a 45 degree phase angle (tan phi = 1) to relate reactance and resistance

1. A.
   $\frac{1}{24\pi}$
2. B.
   $\frac{\pi}{20}$
3. C.
   $\frac{\pi}{40}$
4. D.
   $\frac{1}{12\pi}$

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1. A.
   $\frac{1 + 2\pi fCR}{4\pi^2 f^2 C}$
2. B.
   $\frac{1 - 2\pi fCR}{4\pi^2 f^2 C}$
3. C.
   $\frac{4\pi^2 f^2 C}{1 + 2\pi fCR}$
4. D.
   $\frac{4\pi^2 f^2 C}{1 - 2\pi fCR}$

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1. A.
   $\frac{1+2\pi fCR}{4\pi^2 f^2 C}$
2. B.
   $\frac{1-2\pi fCR}{4\pi^2 f^2 C}$
3. C.
   $\frac{4\pi^2 f^2 C}{1+2\pi fCR}$
4. D.
   $\frac{4\pi^2 f^2 C}{1-2\pi fCR}$

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1. A.
   $X_L=X_C-R$
2. B.
   $X_L=X_C+R$
3. C.
   $X_C=X_L^2+R^2$
4. D.
   $X_L=X_C^2+R^2$

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1. A.
   R
2. B.
   $\frac{R}{2}$
3. C.
   $\frac{R}{4}$
4. D.
   $\frac{R}{\sqrt{2}}$

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1. A.
   $2R$
2. B.
   $R$
3. C.
   $\sqrt{2}R$
4. D.
   $\dfrac{1}{\sqrt{2}}R$

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1. A.
   $\dfrac{1 + 2\pi FCR}{2\pi FC}$
2. B.
   $\dfrac{1 + 2\pi FCR}{4\pi^2F^2C}$
3. C.
   $\dfrac{1 - 2\pi FCR}{4\pi^2F^2C}$
4. D.
   $\dfrac{1 + 2\pi FR}{4\pi^2F^2C}$

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