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1
KCET 2021
MCQ (Single Correct Answer)
+1
-0

Which of the field pattern given below is valid for electric field as well as for magnetic field?

A
KCET 2021 Physics - Moving Charges and Magnetism Question 13 English Option 1
B
KCET 2021 Physics - Moving Charges and Magnetism Question 13 English Option 2
C
KCET 2021 Physics - Moving Charges and Magnetism Question 13 English Option 3
D
KCET 2021 Physics - Moving Charges and Magnetism Question 13 English Option 4
2
KCET 2020
MCQ (Single Correct Answer)
+1
-0

In the given figure, the magnetic field at $$O$$.

KCET 2020 Physics - Moving Charges and Magnetism Question 8 English

A
$$\frac{3}{4} \frac{\mu_0 I}{r}+\frac{\mu_0 I}{4 \pi r}$$
B
$$\frac{3}{10} \frac{\mu_0 I}{r}-\frac{\mu_0 I}{4 \pi r}$$
C
$$\frac{3}{8} \frac{\mu_0 I}{r}+\frac{\mu_0 I}{4 \pi r}$$
D
$$\frac{3}{8} \frac{\mu_0 I}{r}-\frac{\mu_0 I}{4 \pi r}$$
3
KCET 2020
MCQ (Single Correct Answer)
+1
-0

The magnetic field at the origin due to a current element $$i d \mathbf{l}$$ placed at a point with vector position $$\mathrm{r}$$ is

A
$$\frac{\mu_0 i}{4 \pi} \frac{d \mathbf{l} \times \mathbf{r}}{r^3}$$
B
$$\frac{\mu_0 i}{4 \pi} \frac{\mathbf{r} \times d \mathbf{l}}{r^3}$$
C
$$\frac{\mu_0 i}{4 \pi} \frac{d \mathbf{l} \times \mathbf{r}}{r^2}$$
D
$$\frac{\mu_0 i}{4 \pi} \frac{\mathbf{r} \times d \mathbf{l}}{r^2}$$
4
KCET 2020
MCQ (Single Correct Answer)
+1
-0

A long cylindrical wire of radius $$R$$ carries a uniform current $$I$$ flowing through it. The variation of magnetic field with distance $$r$$ from the axis of the wire is shown by

A
KCET 2020 Physics - Moving Charges and Magnetism Question 7 English Option 1
B
KCET 2020 Physics - Moving Charges and Magnetism Question 7 English Option 2
C
KCET 2020 Physics - Moving Charges and Magnetism Question 7 English Option 3
D
KCET 2020 Physics - Moving Charges and Magnetism Question 7 English Option 4
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