Field at the centre of a circular arc

1. A.
   $\frac{\mu_0 I}{8r}$
2. B.
   $\frac{\mu_0 I}{32r}$
3. C.
   $\frac{\mu_0 I}{64r}$
4. D.
   $\frac{\mu_0 I}{16r}$

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1. A.
   $\frac{\mu_0 I}{3R}$ in upward direction
2. B.
   $\frac{\mu_0 I}{2R}$ in downward direction
3. C.
   $\frac{3\mu_0 I}{8R}$ in downward direction
4. D.
   $\frac{3\mu_0 I}{8R}$ in upward direction

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1. A.
   $\frac{\mu_0 I}{2R}$
2. B.
   $\frac{\mu_0 I}{8R}$
3. C.
   $\frac{\mu_0 I}{4R}$
4. D.
   $\frac{2\mu_0 I}{5R}$

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1. A.
   $\frac{\mu_0 l}{32r}$
2. B.
   $\frac{\mu_0 I}{16r}$
3. C.
   $\frac{\mu_0 I}{64r}$
4. D.
   $\frac{\mu_0 I}{8r}$

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1. A.
   $\dfrac{\mu_0i}{4r}$
2. B.
   $\dfrac{\mu_0i}{8r}$
3. C.
   $\dfrac{\mu_0i}{16r}$
4. D.
   $\dfrac{\mu_0i}{20r}$

Tap an option to check your answer.

1. A.
   $\dfrac{\mu_0I}{2R}$
2. B.
   $\dfrac{\mu_0I}{8R}$
3. C.
   $\dfrac{\mu_0I}{4R}$
4. D.
   $\dfrac{2\mu_0I}{5R}$

Tap an option to check your answer.