1

JEE Main 2024 (Online) 31st January Morning Shift

MCQ (Single Correct Answer)

+4

-1

A coil is places perpendicular to a magnetic field of $$5000 \mathrm{~T}$$. When the field is changed to $$3000 \mathrm{~T}$$ in $$2 \mathrm{~s}$$, an induced emf of $$22 \mathrm{~V}$$ is produced in the coil. If the diameter of the coil is $$0.02 \mathrm{~m}$$, then the number of turns in the coil is:

2

JEE Main 2024 (Online) 30th January Evening Shift

MCQ (Single Correct Answer)

+4

-1

Match List I with List II

List I | List II | ||
---|---|---|---|

(A) | Gauss's law of magnetostatics | (I) | $$\oint \vec{E} \cdot \vec{d} a=\frac{1}{\varepsilon_0} \int \rho d V$$ |

(B) | Faraday's law of electro magnetic induction | (II) | $$\oint \vec{B} \cdot \vec{d} a=0$$ |

(C) | Ampere's law | (III) | $$\int \vec{E} \cdot \vec{d} l=\frac{-d}{d t} \int \vec{B} \cdot \vec{d} a$$ |

(D) | Gauss's law of electrostatics | (IV) | $$\oint \vec{B} \cdot \vec{d} l=\mu_0 I$$ |

Choose the correct answer from the options given below:

3

JEE Main 2024 (Online) 29th January Morning Shift

MCQ (Single Correct Answer)

+4

-1

Match List I with List II

List - I | List - II | ||
---|---|---|---|

(A) | $$\oint \vec{B} \cdot \overrightarrow{d l}=\mu_o i_c+\mu_o \varepsilon_o \frac{d \phi_E}{d t}$$ | (I) | Gauss' law for electricity |

(B) | $$\oint \vec{E} \cdot \overrightarrow{d l}=\frac{d \phi_B}{d t}$$ | (II) | Gauss' law for magnetism |

(C) | $$\oint \vec{E} \cdot \overrightarrow{d A}=\frac{Q}{\varepsilon_o}$$ | (III) | Faraday law |

(D) | $$\oint \vec{B} \cdot \overrightarrow{d A}=0$$ | (IV) | Ampere - Maxwell law |

Choose the correct answer from the options given below:

4

JEE Main 2024 (Online) 27th January Morning Shift

MCQ (Single Correct Answer)

+4

-1

A rectangular loop of length $$2.5 \mathrm{~m}$$ and width $$2 \mathrm{~m}$$ is placed at $$60^{\circ}$$ to a magnetic field of $$4 \mathrm{~T}$$. The loop is removed from the field in $$10 \mathrm{~sec}$$. The average emf induced in the loop during this time is

Questions Asked from Electromagnetic Induction (MCQ (Single Correct Answer))

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