Day 27: MHT-CET Physics

1. A.
   $\left[\dfrac{(I_1 + I_2)}{I_1I_2}\right]$
2. B.
   $\dfrac{I_1I_2}{(I_1 - I_2)}$
3. C.
   $\dfrac{(I_1 - I_2)}{I_1I_2}$
4. D.
   $\dfrac{I_1I_2}{(I_1 + I_2)}$

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1. A.
   $-\dfrac{q^2}{8\pi\epsilon_0a}$
2. B.
   $-\dfrac{3q^2}{8\pi\epsilon_0a}$
3. C.
   $-\dfrac{5q^2}{8\pi\epsilon_0a}$
4. D.
   $-\dfrac{7q^2}{8\pi\epsilon_0a}$

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1. A.
   $\beta = 9.0$
2. B.
   the base current is $10$ mA
3. C.
   the emitter current is $1$ mA
4. D.
   $\beta = 0.9$

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1. A.
   $\dfrac{\lambda\Phi}{2\pi}$
2. B.
   $\dfrac{\lambda}{2\pi}\left(\Phi + \dfrac{\pi}{2}\right)$
3. C.
   $\dfrac{\lambda}{2\pi}\left(\Phi - \dfrac{\pi}{2}\right)$
4. D.
   $\dfrac{2\pi\Phi}{\lambda}$

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1. A.
   $1200 : 1$
2. B.
   $900 : 1$
3. C.
   $600 : 1$
4. D.
   $300 : 1$

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