Day 185: MHT-CET Physics

1. A.
   diamagnetic substance.
2. B.
   paramagnetic substance.
3. C.
   ferromagnetic substance.
4. D.
   paramagnetic as well as ferromagnetic substance.

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1. A.
   second
2. B.
   volt
3. C.
   ampere
4. D.
   per second

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1. A.
   $\dfrac{\mu_0I_1I_2}{2\pi rg}$
2. B.
   $\dfrac{\mu_0I_1I_2}{4\pi rg}$
3. C.
   $\dfrac{\mu_0I_1I_2}{\pi rg}$
4. D.
   $\dfrac{\mu_0I_1I_2}{\pi r^2g}$

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1. A.
   $25000$ $\mathrm{\mathring{A}}$
2. B.
   $28000$ $\mathrm{\mathring{A}}$
3. C.
   $30500$ $\mathrm{\mathring{A}}$
4. D.
   $32000$ $\mathrm{\mathring{A}}$

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1. A.
   $100$ m
2. B.
   $75$ m
3. C.
   $200$ m
4. D.
   $125$ m

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