Circular region of radius R has uniform magnetic field B = {B_0} + {B_0}tleft( { - hat k} right).,At,,t, = 0, acceleration of charged particle

Q: Circular region of radius $R$ has uniform magnetic field $B = {B_0} + {B_0}t\left( { - \hat k} \right).\,At\,\,t\, = 0\,$ acceleration of charged particle

a $\pi \mathrm{R}^{2} \mathrm{B}_{0}=\mathrm{E} \times 2 \pi \mathrm{r}$ $\mathrm{E}=\frac{\pi \mathrm{R}^{2}}{2 \pi \mathrm{r}} \mathrm{B}_{0}=\frac{\mathrm{R}^{2} \mathrm{B}_{0}}{2 \mathrm{r}}$ $a=\frac{q E}{m}=\frac{q}{m} \frac{R^{2} B_{0}}{2 r}=\frac{q B_{0} R^{2}}{2 m r}$

SECTION - A [PHYSICS - MCQ]

GSEB - English Medium

Circular region of radius $R$ has uniform magnetic field $B = {B_0} + {B_0}t\left( { - \hat k} \right).\,At\,\,t\, = 0\,$ acceleration of charged particle

A$\frac{{q{B_0}{R^2}}}{{2mr}}$
B$\frac{{q{B_0}R}}{{2mr}}$
C$\frac{{q{B_0}{R^3}}}{{2m{r^2}}}$
D$\frac{{q{B_0}{R^2}}}{{mr}}$

Diffcult

STD 11 Science
NEET
STD 12 - 4. Moving charges and magnetism
Physics

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