Select Chapter Topics:

Which one of the following gives the value of the magnetic field according to Biot-Savart’s law?

1. | \(\frac{\mathrm{i} \Delta \mathrm{l} \sin (\theta)}{\mathrm{r}^2} \) | 2. | \(\frac{\mu_0}{4 \pi} \frac{\mathrm{i} \Delta \mathrm{l} \sin (\theta)}{\mathrm{r}} \) |

3. | \(\frac{\mu_0}{4 \pi} \frac{\mathrm{i} \Delta \mathrm{l} \sin (\theta)}{\mathrm{r}^2} \) | 4. | \(\frac{\mu_0}{4 \pi} \mathrm{i} \Delta \mathrm{l} \sin (\theta)\) |

Subtopic: Biot-Savart Law |

89%

From NCERT

To view explanation, please take trial in the course.

NEET 2023 - Target Batch - Aryan Raj Singh

Hints

Links

To view explanation, please take trial in the course.

NEET 2023 - Target Batch - Aryan Raj Singh

An element \(\Delta l=\Delta x \hat{i}\) is placed at the origin and carries a large current of \(I=10\) A (as shown in the figure). What is the magnetic field on the y-axis at a distance of \(0.5\) m?(\(\Delta x=1~\mathrm{cm}\))

1. | \(6\times 10^{-8}~\mathrm{T}\) | 2. | \(4\times 10^{-8}~\mathrm{T}\) |

3. | \(5\times 10^{-8}~\mathrm{T}\) | 4. | \(5.4\times 10^{-8}~\mathrm{T}\) |

Subtopic: Biot-Savart Law |

80%

To view explanation, please take trial in the course.

NEET 2023 - Target Batch - Aryan Raj Singh

Hints

Links

To view explanation, please take trial in the course.

NEET 2023 - Target Batch - Aryan Raj Singh

A straight wire carrying a current of 12 A is bent into a semi-circular arc of radius 2.0 cm as shown in the figure. Considering the magnetic field B at the centre of the arc, what will be the magnetic field due to the straight segments?

$1.0$

$2.1.2\times {10}^{-4}T$

$3.2.1\times {10}^{-4}T$

$4.Noneofthese$

Subtopic: Biot-Savart Law |

78%

To view explanation, please take trial in the course.

NEET 2023 - Target Batch - Aryan Raj Singh

Hints

Links

The resistances of three parts of a circular loop are as shown in the figure. What will be the magnetic field at the centre of O

(current enters at A and leaves at B and C as shown)?

1. $\frac{{\mathrm{\mu}}_{0}\mathrm{I}}{6\mathrm{a}}$

2. $\frac{{\mathrm{\mu}}_{0}\mathrm{I}}{3\mathrm{a}}$

3. $\frac{2{\mathrm{\mu}}_{0}\mathrm{I}}{3\mathrm{a}}$

4. 0

Subtopic: Magnetic Field due to various cases |

82%

From NCERT

To view explanation, please take trial in the course.

NEET 2023 - Target Batch - Aryan Raj Singh

Hints

Links

To view explanation, please take trial in the course.

NEET 2023 - Target Batch - Aryan Raj Singh

Which of the following graphs correctly represents the variation of magnetic field induction with distance due to a thin wire carrying current?

1. | 2. | ||

3. | 4. |

Subtopic: Magnetic Field due to various cases |

80%

From NCERT

To view explanation, please take trial in the course.

NEET 2023 - Target Batch - Aryan Raj Singh

Hints

Links

To view explanation, please take trial in the course.

NEET 2023 - Target Batch - Aryan Raj Singh

What is the magnetic field at point O in the figure?

1. $\frac{{\mu}_{0}I}{4\mathrm{\pi r}}$

2. $\frac{{\mu}_{0}I}{4\mathrm{\pi r}}+\frac{{\mu}_{0}I}{2\mathrm{\pi r}}$

3. $\frac{{\mu}_{0}I}{4r}+\frac{{\mu}_{0}I}{4\mathrm{\pi r}}$

4. $\frac{{\mu}_{0}I}{4r}-\frac{{\mu}_{0}I}{4\mathrm{\pi r}}$

Subtopic: Magnetic Field due to various cases |

78%

To view explanation, please take trial in the course.

NEET 2023 - Target Batch - Aryan Raj Singh

Hints

Two identical long conducting wires \(\mathrm{AOB}\) and \(\mathrm{COD}\) are placed at a right angle to each other, with one above the other such that '\(O\)' is the common point for the two. The wires carry \(I_1\) and \(I_2\) currents, respectively.
Point '\(P\)' is lying at a distance '\(d\)' from '\(O\)' along a direction perpendicular to the plane containing the wires. What will be the magnetic field at the point \(P\)?

1. \(\frac{\mu_0}{2\pi d}\left(\frac{I_1}{I_2}\right )\)

2. \(\frac{\mu_0}{2\pi d}\left[I_1+I_2\right ]\)

3. \(\frac{\mu_0}{2\pi d}\left[I^2_1+I^2_2\right ]\)

4. \(\frac{\mu_0}{2\pi d}\sqrt{\left[I^2_1+I^2_2\right ]}\)

Subtopic: Magnetic Field due to various cases |

75%

From NCERT

AIPMT - 2014

To view explanation, please take trial in the course.

NEET 2023 - Target Batch - Aryan Raj Singh

Hints

Links

To view explanation, please take trial in the course.

NEET 2023 - Target Batch - Aryan Raj Singh

If the magnetic field at the centre of the circular coil is B_{0}, then what is the distance on its axis from the centre of the coil where \(B_x=\frac{B_0}{8}~?\)

(R= radius of the coil)

1. | \(R \over 3\) | 2. | \(\sqrt{3}R\) |

3. | \(R \over \sqrt3\) | 4. | \(R \over 2\) |

Subtopic: Magnetic Field due to various cases |

74%

From NCERT

To view explanation, please take trial in the course.

NEET 2023 - Target Batch - Aryan Raj Singh

Hints

Links

To view explanation, please take trial in the course.

NEET 2023 - Target Batch - Aryan Raj Singh

A circular coil is in the y-z plane with its centre at the origin. The coil carries a constant current. Assuming the direction of the magnetic field at x = – 25 cm to be positive, which of the following graphs shows the variation of the magnetic field along the x-axis?

1. | 2. | ||

3. | 4. |

Subtopic: Magnetic Field due to various cases |

69%

From NCERT

To view explanation, please take trial in the course.

NEET 2023 - Target Batch - Aryan Raj Singh

Hints

Links

To view explanation, please take trial in the course.

NEET 2023 - Target Batch - Aryan Raj Singh

A current loop consists of two identical semicircular parts each of radius *\(R\)*, one lying in the *x-y* plane, and the other in the *x-z* plane.
If the current in the loop is \(i\), what will be the resultant magnetic field due to the two semicircular parts at their common centre?

1. | \( \frac{\mu_0 i}{2 \sqrt{2} R} \) | 2. | \( \frac{\mu_0 i}{2 R} \) |

3. | \( \frac{\mu_0 i}{4 R} \) | 4. | \( \frac{\mu_0 i}{\sqrt{2} R}\) |

Subtopic: Magnetic Field due to various cases |

66%

From NCERT

NEET - 2010

To view explanation, please take trial in the course.

NEET 2023 - Target Batch - Aryan Raj Singh

Hints

To view explanation, please take trial in the course.

NEET 2023 - Target Batch - Aryan Raj Singh